Write to Wake Lock FMQ

Write the number of WAKE_UP sensor events handled by the Sensor
Service to the Wake Lock FMQ. This allows the Sensors HAL to release
its wake lock for events once the Sensor Service holds a wake lock for
the events.

Bug: 111070257
Test: Compile, configured system to use sensors@2.0 and ensured that
      a_sns_test received events
Test: Ensured device with sensors@1.0 receives events as expected
Change-Id: Ide091012bdaeb2e6a9fc4f5a43ddbb298dbf3416
diff --git a/services/sensorservice/SensorService.cpp b/services/sensorservice/SensorService.cpp
index 3822ee1..7c56e5c 100644
--- a/services/sensorservice/SensorService.cpp
+++ b/services/sensorservice/SensorService.cpp
@@ -651,16 +651,18 @@
         // sending events to clients (incrementing SensorEventConnection::mWakeLockRefCount) should
         // not be interleaved with decrementing SensorEventConnection::mWakeLockRefCount and
         // releasing the wakelock.
-        bool bufferHasWakeUpEvent = false;
+        uint32_t wakeEvents = 0;
         for (int i = 0; i < count; i++) {
             if (isWakeUpSensorEvent(mSensorEventBuffer[i])) {
-                bufferHasWakeUpEvent = true;
-                break;
+                wakeEvents++;
             }
         }
 
-        if (bufferHasWakeUpEvent && !mWakeLockAcquired) {
-            setWakeLockAcquiredLocked(true);
+        if (wakeEvents > 0) {
+            if (!mWakeLockAcquired) {
+                setWakeLockAcquiredLocked(true);
+            }
+            device.writeWakeLockHandled(wakeEvents);
         }
         recordLastValueLocked(mSensorEventBuffer, count);