PCI: thunder-pem: Make explicitly non-modular

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

  drivers/pci/host/Kconfig:config PCI_HOST_THUNDER_PEM
  drivers/pci/host/Kconfig:       bool "Cavium Thunder PCIe controller to off-chip devices"

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]
Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
CC: David Daney <david.daney@cavium.com>

drivers/pci/host/pci-thunder-pem.c

@@ -15,7 +15,7 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/of_address.h>
 #include <linux/of_pci.h>
 #include <linux/platform_device.h>
@@ -346,7 +346,6 @@ static const struct of_device_id thunder_pem_of_match[] = {
 	{ .compatible = "cavium,pci-host-thunder-pem" },
 	{ },
 };
-MODULE_DEVICE_TABLE(of, thunder_pem_of_match);
 
 static int thunder_pem_probe(struct platform_device *pdev)
 {
@@ -360,7 +359,4 @@ static struct platform_driver thunder_pem_driver = {
 	},
 	.probe = thunder_pem_probe,
 };
-module_platform_driver(thunder_pem_driver);
-
-MODULE_DESCRIPTION("Thunder PEM PCIe host driver");
-MODULE_LICENSE("GPL v2");
+builtin_platform_driver(thunder_pem_driver);