soc: arm: gigadevice: gd32f403: select AFIO pinmux

GD32F403 series use AFIO pinmux model.

Signed-off-by: Gerard Marull-Paretas <[email protected]>

Author: gmarull

soc/arm/gigadevice/gd32f403/Kconfig.series

@@ -10,5 +10,6 @@ config SOC_SERIES_GD32F403
 	select CPU_CORTEX_M_HAS_SYSTICK
 	select CPU_CORTEX_M_HAS_VTOR
 	select SOC_FAMILY_GD32_ARM
+	select GD32_HAS_AFIO_PINMUX
 	help
 	  Enable support for GigaDevice GD32F403 MCU series