mediatek/mt8173: Add usb phy driver

BRANCH=none
BUG=none
TEST=build pass and test it ok on oak

Change-Id: Ib3d3f420dd576a63d7504dd0949040a3d430c675
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b17b03ed40b562a520185fa243bc4458daed6f23
Original-Change-Id: Ib9346f7913433ca82e8123feaf34fd0d6c071047
Original-Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/292687
Original-Commit-Ready: Yidi Lin <yidi.lin@mediatek.com>
Original-Tested-by: Yidi Lin <yidi.lin@mediatek.com>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/13095
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
3 files changed