Frameworks/base: Fix format string in Geofence

%p is not a valid conversion in format strings. It is also superfluous,
as it is already known that location is null.

Bug: 19797138
Change-Id: I5784e28b05b4ca9aac57e0fc9da4a7f01d9b3247

core/java/android/hardware/location/GeofenceHardwareImpl.java

@@ -436,7 +436,7 @@ public final class GeofenceHardwareImpl {
             int monitoringType,
             int sourcesUsed) {
         if(location == null) {
-            Log.e(TAG, String.format("Invalid Geofence Transition: location=%p", location));
+            Log.e(TAG, String.format("Invalid Geofence Transition: location=null"));
             return;
         }
         if(DEBUG) {