hide search assistant arrow from lockscreen when custom lockscreen is enabled

Change-Id: I02d8286dd9f07cdb1de8a61101e772be35f65fda

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
Allow icons in shared restables to be themed

Example
Google Drive's package  name: com.google.android.apps.docs
Google Drive's restable name: com.google.android.apps.docs.common

Before this patch we used resource table name to get the package info. For
app's like google drive this return a null package info and the icon would not be themed.

So instead of usnig the restable name, this patch creates a package name
in AssetManager that is set by getTopLevelResources.

Change-Id: Ic51b93f6c7ea0a32197682998c6d0aa36d774845
hide new AssetManager methods for themes

Change-Id: I9f5c6a432f9c2f3c1dd5bd9927c5e3fe3ddd1f93
MSIM: Expanded StatusBar: Show SIM slot number

Change-Id: I5c9ba33bfd564ba5301072ba1ef8c33640943710