ARM: imx: select imx6sll pinctrl when imx6sll enabled

select imx6sll pinctrl driver if imx6sll config is enabled.
Signed-off-by: NBai Ping <ping.bai@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/mach-imx/Kconfig

@@ -501,6 +501,7 @@ config SOC_IMX6SL
 
 config SOC_IMX6SLL
 	bool "i.MX6 SoloLiteLite support"
+	select PINCTRL_IMX6SLL
 	select SOC_IMX6
 
 	help