reset: socfpga: make it explicitly non-modular

The Kconfig currently controlling compilation of this code is:

drivers/reset/Kconfig:config RESET_SOCFPGA
drivers/reset/Kconfig: bool "SoCFPGA Reset Driver" if COMPILE_TEST
drivers/reset/Kconfig: default ARCH_SOCFPGA

or

arch/arm/mach-socfpga/Kconfig:menuconfig ARCH_SOCFPGA
arch/arm/mach-socfpga/Kconfig: bool "Altera SOCFPGA family" if ARCH_MULTI_V7

...meaning that it currently is not being built as a module by anyone.

Lets remove the small amount of modular evidence that remains, so that
when reading the driver there is no doubt it is builtin-only.

Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.

Cc: Steffen Trumtrar <[e-mail]>
Cc: Masahiro Yamada <[e-mail]>
Signed-off-by: Paul Gortmaker <[e-mail]>
Signed-off-by: Philipp Zabel <[e-mail]>

drivers/reset/reset-socfpga.c

···
 /*
+ * Socfpga Reset Controller Driver
+ *
  * Copyright 2014 Steffen Trumtrar <[e-mail]>
  *
  * based on
···
 
 #include <linux/err.h>
 #include <linux/io.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/reset-controller.h>
···
 		.of_match_table	= socfpga_reset_dt_ids,
 	},
 };
-module_platform_driver(socfpga_reset_driver);
-
-MODULE_AUTHOR("Steffen Trumtrar <[e-mail]");
-MODULE_DESCRIPTION("Socfpga Reset Controller Driver");
-MODULE_LICENSE("GPL");
+builtin_platform_driver(socfpga_reset_driver);