Update device info on Display.getDeviceProductInfo()

Each getter of the Display class should first
call updateDisplayInfoLocked().

Test: presubmit
Bug: 179775994
Change-Id: I4df9945cd030296da0e170411af8c66c89f57adf

core/java/android/view/Display.java

@@ -1203,7 +1203,10 @@ public final class Display {
      */
     @Nullable
     public DeviceProductInfo getDeviceProductInfo() {
-        return mDisplayInfo.deviceProductInfo;
+        synchronized (mLock) {
+            updateDisplayInfoLocked();
+            return mDisplayInfo.deviceProductInfo;
+        }
     }
 
     /**