pinctrl: rockchip: make it explicitly non-modular

The Kconfig currently controlling compilation of this code is:

drivers/pinctrl/Kconfig:config PINCTRL_ROCKCHIP
drivers/pinctrl/Kconfig: bool

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

Lets remove the couple traces of modular infrastructure use, so that
when reading the driver there is no doubt it is builtin-only.

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

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Linus Walleij <[e-mail]>
Cc: Heiko Stuebner <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Signed-off-by: Paul Gortmaker <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/pinctrl-rockchip.c

···
  * GNU General Public License for more details.
  */
 
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/bitops.h>
···
 		.data = (void *)&rk3399_pin_ctrl },
 	{},
 };
-MODULE_DEVICE_TABLE(of, rockchip_pinctrl_dt_match);
 
 static struct platform_driver rockchip_pinctrl_driver = {
 	.probe		= rockchip_pinctrl_probe,
···
 	return platform_driver_register(&rockchip_pinctrl_driver);
 }
 postcore_initcall(rockchip_pinctrl_drv_register);
-
-MODULE_AUTHOR("Heiko Stuebner <[e-mail]>");
-MODULE_DESCRIPTION("Rockchip pinctrl driver");
-MODULE_LICENSE("GPL v2");