ARM:dts:msm: Fix DP and USB concurrent issue

USB1 and DP share the PHY. After display initialization,usb
never switch to high speed mode and device mode doesn't work.

Change-Id: I3cf0b71bc2fe6c9593324cf2307cce1039f19566
Signed-off-by: Sumeet Sahu <sumesahu@codeaurora.org>