PCI: rcar: Make explicitly non-modular

This code is not being built as a module by anyone:

  drivers/pci/host/Kconfig:config PCI_RCAR_GEN2_PCIE
  drivers/pci/host/Kconfig:       bool "Renesas R-Car PCIe controller"

Remove uses of MODULE_DESCRIPTION(), MODULE_AUTHOR(), MODULE_LICENSE(),
etc., so that when reading the driver there is no doubt it is builtin-only.
The information is preserved in comments at the top of the file.

Replace module_platform_driver() with builtin_platform_driver(), which uses
the same init level priority, so init ordering is unchanged.

Note that MODULE_DEVICE_TABLE is a no-op for non-modular code.

[bhelgaas: changelog, remove "Module" from author comment]
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Phil Edworthy <phil.edworthy@renesas.com>

drivers/pci/host/pcie-rcar.c

@@ -7,6 +7,8 @@
  *  arch/sh/drivers/pci/ops-sh7786.c
  *  Copyright (C) 2009 - 2011  Paul Mundt
  *
+ * Author: Phil Edworthy <phil.edworthy@renesas.com>
+ *
  * This file is licensed under the terms of the GNU General Public
  * License version 2.  This program is licensed "as is" without any
  * warranty of any kind, whether express or implied.
@@ -18,7 +20,7 @@
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/msi.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
@@ -936,7 +938,6 @@ static const struct of_device_id rcar_pcie_of_match[] = {
 	{ .compatible = "renesas,pcie-r8a7795", .data = rcar_pcie_hw_init },
 	{},
 };
-MODULE_DEVICE_TABLE(of, rcar_pcie_of_match);
 
 static void rcar_pcie_release_of_pci_ranges(struct rcar_pcie *pci)
 {
@@ -1073,8 +1074,4 @@ static struct platform_driver rcar_pcie_driver = {
 	},
 	.probe = rcar_pcie_probe,
 };
-module_platform_driver(rcar_pcie_driver);
-
-MODULE_AUTHOR("Phil Edworthy <phil.edworthy@renesas.com>");
-MODULE_DESCRIPTION("Renesas R-Car PCIe driver");
-MODULE_LICENSE("GPL v2");
+builtin_platform_driver(rcar_pcie_driver);