arm64: tegra21: remove USB_TEGRA_XUDC config

arm64: tegra21: remove USB_TEGRA_XUDC config

micro USB OTG port is not controlled by XHCI controller but by Synopsys
controller, hence remove USB_TEGRA_XUDC config

Bug 200106016

Change-Id: I74484e3dae7a373b8600c0c7b55631a343e5d97d
Signed-off-by: Shreshtha SAHU <ssahu@nvidia.com>
Reviewed-on: http://git-master/r/762363
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Rakesh Babu Bodla <rbodla@nvidia.com>
Reviewed-by: Hayden Du <haydend@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>