Rebuild NavigationBar during theme change for AOSP

Summary: AOSP navigation bar does not listen for ConfigurationChanged. So we have to do it manually, for now

Test Plan: build, test, confirm, merge

Reviewers: synergy, jriordan001, anders3408, donald.munn, raymanfx, randall.rushing

Reviewed By: synergy

Differential Revision: http://review.codefirex.com/D179