drivers: ethernet: dwmac_stm32h7x: add select PINCTRL

stm32 dwmac_stm32h7x driver is relying on the pinctrl framework
hence select CONFIG_PINCTRL to ensure proper build.

Signed-off-by: Alain Volmat <[email protected]>

Author: Alain Volmat

drivers/ethernet/Kconfig.dwmac

@@ -31,6 +31,7 @@ config ETH_DWMAC_STM32H7X
 	bool
 	depends on SOC_SERIES_STM32H7X
 	select NOCACHE_MEMORY if ARCH_HAS_NOCACHE_MEMORY_SUPPORT
+	select PINCTRL
 	default y
 
 config ETH_DWMAC_MMU