ARM: shmobile: Enable RZA1 pin controller

Enable PINCTRL_RZA1 option in shmobile_defconfig
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/configs/shmobile_defconfig

@@ -120,6 +120,7 @@ CONFIG_SPI=y
 CONFIG_SPI_RSPI=y
 CONFIG_SPI_SH_MSIOF=y
 CONFIG_SPI_SH_HSPI=y
+CONFIG_PINCTRL_RZA1=y
 CONFIG_GPIO_EM=y
 CONFIG_GPIO_RCAR=y
 CONFIG_GPIO_PCF857X=y