ARM: dts: msm: Update high-speed PHY parameters for QRD670

QRD670 failed on high-speed eye diagram test. Updated
these parameters based on tuning result to get best USB
eye diagram.

Change-Id: Icd085fccbf670ff26441d246c9273fe9542350eb
Signed-off-by: Liangliang Lu <luliang@codeaurora.org>