fb: animate carrier lable when collapsing notification drawer

like we do for shortcuts....does not look well that this is the only
part which does not animate. IMO google behaviour is not the best
here

Change-Id: I9a7f4b4564e7cf87ee2477454aff0a9ae6af8e26

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java

Change-Id: I9151715871a29fe0b2243448c62f51b69fc54767