Visual changes to QS.

* Changed spacing in QS
* Removed divider in QSFooterImpl
* Fixed size of carrier icons in QS header
* Fixed overlapping animations on expanding QS

Fixes: 124464727
Fixes: 128920517
Test: visual
Change-Id: I7d56b9db7ce06b59291522a3bbfaa8cb80aaebce
7 files changed