staging: fbtft: add SPDX identifiers

It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Fix up the all of the staging fbtft drivers to have a proper SPDX
identifier, based on the license text in the file itself.  The SPDX
identifier is a legally binding shorthand, which can be used instead of
the full boiler plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Kate Stewart <kstewart@linuxfoundation.org>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fbtft/fb_agm1264k-fl.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for Two KS0108 LCD controllers in AGM1264K-FL display
  *

drivers/staging/fbtft/fb_bd663474.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the uPD161704 LCD Controller
  *

drivers/staging/fbtft/fb_hx8340bn.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the HX8340BN LCD Controller
  *

drivers/staging/fbtft/fb_hx8347d.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the HX8347D LCD Controller
  *

drivers/staging/fbtft/fb_hx8353d.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the HX8353D LCD Controller
  *

drivers/staging/fbtft/fb_hx8357d.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the HX8357D LCD Controller
  * Copyright (C) 2015 Adafruit Industries

drivers/staging/fbtft/fb_hx8357d.h

+/* SPDX-License-Identifier: MIT */
 /*
  * This is our library for the Adafruit  ILI9341 Breakout and Shield
  * ----> http://www.adafruit.com/products/1651

drivers/staging/fbtft/fb_ili9163.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9163 LCD Controller
  *

drivers/staging/fbtft/fb_ili9320.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9320 LCD Controller
  *

drivers/staging/fbtft/fb_ili9325.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9325 LCD Controller
  *

drivers/staging/fbtft/fb_ili9340.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9340 LCD Controller
  *

drivers/staging/fbtft/fb_ili9341.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9341 LCD display controller
  *

drivers/staging/fbtft/fb_ili9481.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9481 LCD Controller
  *

drivers/staging/fbtft/fb_ili9486.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ILI9486 LCD Controller
  *

drivers/staging/fbtft/fb_pcd8544.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the PCD8544 LCD Controller
  *

drivers/staging/fbtft/fb_ra8875.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FBTFT driver for the RA8875 LCD Controller
  * Copyright by Pf@nne & NOTRO

drivers/staging/fbtft/fb_s6d02a1.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the S6D02A1 LCD Controller
  *

drivers/staging/fbtft/fb_s6d1121.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the S6D1121 LCD Controller
  *

drivers/staging/fbtft/fb_sh1106.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the SH1106 OLED Controller
  * Based on the SSD1306 driver by Noralf Tronnes

drivers/staging/fbtft/fb_ssd1289.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the SSD1289 LCD Controller
  *

drivers/staging/fbtft/fb_ssd1305.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the SSD1305 OLED Controller
  *

drivers/staging/fbtft/fb_ssd1306.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the SSD1306 OLED Controller
  *

drivers/staging/fbtft/fb_ssd1325.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the SSD1325 OLED Controller
  *

drivers/staging/fbtft/fb_ssd1331.c

+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>

drivers/staging/fbtft/fb_ssd1351.c

+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>

drivers/staging/fbtft/fb_st7735r.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ST7735R LCD Controller
  *

drivers/staging/fbtft/fb_st7789v.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the ST7789V LCD Controller
  *

drivers/staging/fbtft/fb_tinylcd.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Custom FB driver for tinylcd.com display
  *

drivers/staging/fbtft/fb_tls8204.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the TLS8204 LCD Controller
  *

drivers/staging/fbtft/fb_uc1611.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the UltraChip UC1611 LCD controller
  *

drivers/staging/fbtft/fb_uc1701.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the UC1701 LCD Controller
  *

drivers/staging/fbtft/fb_upd161704.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the uPD161704 LCD Controller
  *

drivers/staging/fbtft/fb_watterott.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * FB driver for the Watterott LCD Controller
  *

drivers/staging/fbtft/fbtft-core.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2013 Noralf Tronnes
  *

drivers/staging/fbtft/fbtft.h

+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2013 Noralf Tronnes
  *

drivers/staging/fbtft/fbtft_device.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  *
  * Copyright (C) 2013, Noralf Tronnes

drivers/staging/fbtft/flexfb.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Generic FB driver for TFT LCD displays
  *

drivers/staging/fbtft/internal.h

+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2013 Noralf Tronnes
  *