drivers: pinmux: Drop sam0 pinmux in favor of pinctrl

Drop sam0 pinmux driver and all related entries in favor to use new
pinctrl API.

Signed-off-by: Gerson Fernando Budke <[email protected]>

Author: nandojve

boards/arm/adafruit_feather_m0_basic_proto/CMakeLists.txt

@@ -15,8 +15,6 @@ CONFIG_WATCHDOG=y
 CONFIG_WDT_SAM0=y
 CONFIG_SOC_ATMEL_SAMD_XOSC32K=y
 CONFIG_SOC_ATMEL_SAMD_XOSC32K_AS_MAIN=y
-CONFIG_PINMUX=y
-CONFIG_PINMUX_SAM0=y
 CONFIG_USE_DT_CODE_PARTITION=y
 CONFIG_I2C=y
 CONFIG_I2C_SAM0=y

boards/arm/adafruit_feather_m0_basic_proto/adafruit_feather_m0_basic_proto_defconfig

@@ -12,7 +12,6 @@ supported:
   - dma
   - gpio
   - hwinfo
-  - pinmux
   - pwm
   - spi
   - uart

boards/arm/adafruit_feather_m0_basic_proto/pinmux.c

@@ -10,6 +10,5 @@ CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
 CONFIG_UART_INTERRUPT_DRIVEN=y
 CONFIG_SERIAL=y
-CONFIG_PINMUX=y
 CONFIG_BOOTLOADER_BOSSA=y
 CONFIG_BOOTLOADER_BOSSA_ADAFRUIT_UF2=y

boards/arm/adafruit_itsybitsy_m4_express/CMakeLists.txt

@@ -14,7 +14,6 @@ supported:
   - dma
   - gpio
   - hwinfo
-  - pinmux
   - pwm
   - spi
   - uart

boards/arm/adafruit_itsybitsy_m4_express/adafruit_itsybitsy_m4_express.yaml

@@ -9,7 +9,6 @@ CONFIG_CONSOLE=y
 CONFIG_UART_CONSOLE=y
 CONFIG_UART_INTERRUPT_DRIVEN=y
 CONFIG_SERIAL=y
-CONFIG_PINMUX=y
 CONFIG_USE_DT_CODE_PARTITION=y
 CONFIG_BOOTLOADER_BOSSA=y
 CONFIG_BOOTLOADER_BOSSA_ADAFRUIT_UF2=y