gpio: nomadik: fix Kconfig dependencies inbetween pinctrl & GPIO

PINCTRL_NOMADIK cannot select GPIO_NOMADIK without first selecting
GPIOLIB on which GPIO_NOMADIK depends. GPIO_NOMADIK depends on OF_GPIO,
it is a direct dependency.

Reported-by: kernel test robot <[e-mail]>
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Closes: https://lore.kernel.org/oe-kbuild-all/[e-mail]/
Signed-off-by: Théo Lebrun <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

drivers/gpio/Kconfig

···
 config GPIO_NOMADIK
 	bool "Nomadik GPIO driver"
 	depends on ARCH_U8500 || ARCH_NOMADIK || MACH_EYEQ5 || COMPILE_TEST
-	select OF_GPIO
+	depends on OF_GPIO
 	select GPIOLIB_IRQCHIP
 	help
 	  Say yes here to support the Nomadik SoC GPIO block. This block is also

drivers/pinctrl/nomadik/Kconfig

···
 	depends on OF
 	select PINMUX
 	select PINCONF
+	select GPIOLIB
 	select GPIO_NOMADIK
 
 config PINCTRL_STN8815