Block signal cluster updates during swipe to notifications/QS

Change-Id: I549d402de0c2bba40d8d2f2334726ed24379b737
Block notification panel carrier label updating unless pertinent

PS2: Make sure the carrier label text only updates if fully expanded and on the
     notification panel side.

Change-Id: I97e7f66fbd0c7e4d6b08c79980dedee405736026