gpio: mvebu: make explicitly non-modular

The Kconfig currently controlling compilation of this code is:

drivers/gpio/Kconfig:config GPIO_MVEBU
drivers/gpio/Kconfig:   def_bool y

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

Lets remove the couple traces of modularity 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.

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

Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-mvebu.c

@@ -34,7 +34,7 @@
  */
 
 #include <linux/err.h>
-#include <linux/module.h>
+#include <linux/init.h>
 #include <linux/gpio.h>
 #include <linux/irq.h>
 #include <linux/slab.h>
@@ -557,7 +557,6 @@ static const struct of_device_id mvebu_gpio_of_match[] = {
 		/* sentinel */
 	},
 };
-MODULE_DEVICE_TABLE(of, mvebu_gpio_of_match);
 
 static int mvebu_gpio_suspend(struct platform_device *pdev, pm_message_t state)
 {
@@ -838,4 +837,4 @@ static struct platform_driver mvebu_gpio_driver = {
 	.suspend        = mvebu_gpio_suspend,
 	.resume         = mvebu_gpio_resume,
 };
-module_platform_driver(mvebu_gpio_driver);
+builtin_platform_driver(mvebu_gpio_driver);