ARM: imx: novena: Enable DM GPIO

Enable DM GPIO support on iMX6Q Novena and fix up board code
where applicable.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Vagrant Cascadian <vagrant@debian.org>
diff --git a/configs/novena_defconfig b/configs/novena_defconfig
index 31a32da..c74f635 100644
--- a/configs/novena_defconfig
+++ b/configs/novena_defconfig
@@ -47,6 +47,7 @@
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_DM=y
 CONFIG_DWC_AHSATA=y
+CONFIG_DM_GPIO=y
 CONFIG_FSL_ESDHC=y
 CONFIG_PHYLIB=y
 CONFIG_PHY_MICREL=y