Downgrade log from error to warn in VRI

An unepxected error log is occuring, but there are not other issues.
Downgrade to a warning and see if other cases occur that can be
inspected.

Test: N/A
Bug: 279792954
Change-Id: I6763b9f95c37b931445901ec3739ce969138abe8

core/java/android/view/ViewRootImpl.java

@@ -11317,7 +11317,7 @@ public final class ViewRootImpl implements ViewParent,
                         // to sync the same frame in the same BBQ. That shouldn't be possible, but
                         // if it did happen, invoke markSyncReady so the active SSG doesn't get
                         // stuck.
-                        Log.e(mTag, "Unable to syncNextTransaction. Possibly something else is"
+                        Log.w(mTag, "Unable to syncNextTransaction. Possibly something else is"
                                 + " trying to sync?");
                         surfaceSyncGroup.markSyncReady();
                     }