ARM: dts: msm: Add macros for QMP USB register offsets on kona

Add macro definitions in a dt-bindings header file for all
the QMP USB DP and USB UNI PHY register offsets.

Change-Id: I7130a361039e919e13b2684b7c018d177b291a21
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>