ARM: mach-stm32: Select pinctrl

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ca16120..84b7291 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -879,6 +879,7 @@
 	select ARCH_HAS_RESET_CONTROLLER
 	select ARMV7M_SYSTICK
 	select CLKSRC_STM32
+	select PINCTRL
 	select RESET_CONTROLLER
 	help
 	  Support for STMicroelectronics STM32 processors.