usb: chipidea: core: refine the description for this driver

Some descriptions are outdated, update them.
Signed-off-by: Peter Chen <peter.chen@nxp.com>

drivers/usb/chipidea/core.c

@@ -3,42 +3,16 @@
  * core.c - ChipIdea USB IP core family device controller
  *
  * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
+ * Copyright (C) 2020 NXP
  *
  * Author: David Lopo
- */
-
-/*
- * Description: ChipIdea USB IP core family device controller
- *
- * This driver is composed of several blocks:
- * - HW:     hardware interface
- * - DBG:    debug facilities (optional)
- * - UTIL:   utilities
- * - ISR:    interrupts handling
- * - ENDPT:  endpoint operations (Gadget API)
- * - GADGET: gadget operations (Gadget API)
- * - BUS:    bus glue code, bus abstraction layer
- *
- * Compile Options
- * - STALL_IN:  non-empty bulk-in pipes cannot be halted
- *              if defined mass storage compliance succeeds but with warnings
- *              => case 4: Hi >  Dn
- *              => case 5: Hi >  Di
- *              => case 8: Hi <> Do
- *              if undefined usbtest 13 fails
- * - TRACE:     enable function tracing (depends on DEBUG)
- *
- * Main Features
- * - Chapter 9 & Mass Storage Compliance with Gadget File Storage
- * - Chapter 9 Compliance with Gadget Zero (STALL_IN undefined)
- * - Normal & LPM support
- *
- * USBTEST Report
- * - OK: 0-12, 13 (STALL_IN defined) & 14
- * - Not Supported: 15 & 16 (ISO)
+ *	   Peter Chen <peter.chen@nxp.com>
  *
- * TODO List
- * - Suspend & Remote Wakeup
+ * Main Features:
+ * - Four transfers are supported, usbtest is passed
+ * - USB Certification for gadget: CH9 and Mass Storage are passed
+ * - Low power mode
+ * - USB wakeup
  */
 #include <linux/delay.h>
 #include <linux/device.h>