Fix Quick Settings tiles jerking down while animating to notifications view

Patch Set 2: Fixed in code rather than XML

cherry-picked to cm-11: fixes Quick Access Ribbons not appearing
when switching back from Quick Settings

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

Change-Id: I1689aa80a0fcb8ad17bcefc290b43a16079f7b88
pm: Prevent a system_server crash is package name is null

 * If an app is placed on the system partition and it doesn't specify a
   valid package name, system_server will crash forever. Just skip it.

Change-Id: I9b911d40b3c4d7cf6fac8cc0166a2ba359329b7b