Add dt-binding for MediaTek USB3 DRD Driver which it's ported
from the Linux kernel DTS binding:
Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
Commit ID:
34d0545978b6 ("dt-bindings: usb: mtu3: fix typo of DMA clock name")
Due to Dual-Role switch is not supported in Uboot, some properties
are removed or changed.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
