ARM: marsboard: Enable OF_CONTROL and DM gpio/pin control

Enable OF_CONTROL and DM for gpio and pin control support
on the i.MX6Q based embestmx6boards marsboard.

Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Cc: "Eric Bénard" <eric@eukrea.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>

configs/marsboard_defconfig

@@ -2,11 +2,13 @@ CONFIG_ARM=y
 CONFIG_ARCH_MX6=y
 CONFIG_SYS_TEXT_BASE=0x17800000
 CONFIG_NR_DRAM_BANKS=1
+CONFIG_DEFAULT_DEVICE_TREE="imx6q-marsboard"
 CONFIG_ENV_SIZE=0x2000
 CONFIG_ENV_OFFSET=0xC0000
 CONFIG_ENV_SECT_SIZE=0x2000
 CONFIG_MX6Q=y
 CONFIG_TARGET_EMBESTMX6BOARDS=y
+CONFIG_OF_CONTROL=y
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/boundary/nitrogen6x/nitrogen6q.cfg,DDR_MB=1024"
 CONFIG_BOOTCOMMAND="run finduuid; run distro_bootcmd"
@@ -17,6 +19,7 @@ CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+# CONFIG_CMD_PINMUX is not set
 CONFIG_CMD_SF=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_CACHE=y
@@ -25,8 +28,11 @@ CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_DM=y
+CONFIG_DM_GPIO=y
 CONFIG_BOUNCE_BUFFER=y
 CONFIG_FSL_USDHC=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_IMX6=y
 CONFIG_SPI_FLASH=y
 CONFIG_SF_DEFAULT_MODE=0
 CONFIG_SF_DEFAULT_SPEED=20000000