pinctrl: pinctrl-microchip-sgpio: Add OF config dependency

The pinctrl-microchip-sgpio driver needs OF support, so add that to
Kconfig.

Reported-by: Randy Dunlap <[e-mail]>
Signed-off-by: Lars Povlsen <[e-mail]>
Acked-by: Randy Dunlap <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Linus Walleij <[e-mail]>

drivers/pinctrl/Kconfig

···
 
 config PINCTRL_MICROCHIP_SGPIO
 	bool "Pinctrl driver for Microsemi/Microchip Serial GPIO"
+	depends on OF
 	depends on HAS_IOMEM
 	select GPIOLIB
 	select GENERIC_PINCONF
 	select GENERIC_PINCTRL_GROUPS
 	select GENERIC_PINMUX_FUNCTIONS
+	select OF_GPIO
 	help
 	  Support for the serial GPIO interface used on Microsemi and
 	  Microchip SoC's. By using a serial interface, the SIO