added dpi and refresh rate info in SF's dumpsys
added dpi and refresh rate info in SF's dumpsys

Change-Id: I2327248eb1993689367e3daeaccba74c172dfceb

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base