SystemUI: Restore bounds when loading new gradient

This fixes an issue introduced with the reloading of the nav bar
transitions after a theme change in Change-Id: I256afc30fc018ea752769029c5246bc7310c23a6

Change-Id: I648039506b826583d554b2a0cf4f6ab9a9bb1de8
Themes: Find wp asset when APK has dir entries

Some APKs are compiled with folders included as zip entries in the APK. This was causing
lockscreen wp to not correctly be set.

Change-Id: I9eca7878b29e3cfcb43abc4a9dab084d9c200b83
Merge branch 'kk' of github.com:SimpleAOSP/android_frameworks_base into kk