Logging config changes as well

Reduce some logging from previous CL

Bug: 185820525
Test: Presubmit
Change-Id: I69baed7b819b529db30a65cb39a80fb310d76243
diff --git a/src/com/android/launcher3/InvariantDeviceProfile.java b/src/com/android/launcher3/InvariantDeviceProfile.java
index 27e2995..61023be 100644
--- a/src/com/android/launcher3/InvariantDeviceProfile.java
+++ b/src/com/android/launcher3/InvariantDeviceProfile.java
@@ -394,6 +394,9 @@
     }
 
     private void onConfigChanged(Context context) {
+        if (TestProtocol.sDebugTracing) {
+            Log.d(TestProtocol.LAUNCHER_NOT_TRANSPOSED, "IDP.onConfigChanged");
+        }
         // Config changes, what shall we do?
         InvariantDeviceProfile oldProfile = new InvariantDeviceProfile(this);