Add pinctrl driver for the Tegra234 DP Aux drivers. Bug 3621816 Change-Id: I5709ae1797e98497675d6af20adb8157298ecec8 Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2704300 GVS: Gerrit_Virtual_Submit