fix [2330211] sensors thread priority too low
fix [2330211] sensors thread priority too low

bump the sensor thread priority to URGENT_DISPLAY. Events will be enqueued
in the UI (or other user provided) thread, which runs at DISPLAY prio.

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