BBQ: Update the transform hint if the SC layer handle does not change

We are now passing the transform hint from WM to the client.
In BBQ, we were not getting the updated transform hint in
some cases because we did not update the SurfaceControl if the layer
handle was the same. Fix this by always updating the SC object
in BBQ.

Test: rotate phone with messages app and check buffer transforms
Fixes: 184842607
Change-Id: I83158f810a9820285c84ecfff294689f63ff3113