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.
diff --git a/core/java/android/hardware/SensorManager.java b/core/java/android/hardware/SensorManager.java
index 271f973..01c67cf 100644
--- a/core/java/android/hardware/SensorManager.java
+++ b/core/java/android/hardware/SensorManager.java
@@ -364,7 +364,7 @@
                 final float[] values = new float[3];
                 final int[] status = new int[1];
                 final long timestamp[] = new long[1];
-                Process.setThreadPriority(Process.THREAD_PRIORITY_DISPLAY);
+                Process.setThreadPriority(Process.THREAD_PRIORITY_URGENT_DISPLAY);
 
                 if (!open()) {
                     return;