SystemUI: Avoid NPEs during status bar recreation for MSIM

PS2:
   * Clear the subs views on recreation
   * Unregister receivers on recreation

Change-Id: Id131ffac497f46a753a97b479823e51fda7c412c
msim: initialize sim icon to the known state

- When system ui gets killed (for instance, during a theme change),
  MultiSimNetworkController may not receive the SIM_STATE_CHANGED
  for both sim cards.  Instead of initializing the sim to "ready",
  query for the actual state at initialization

Change-Id: Ia7f63827bbddca77de3daf4d5d149ec79ab91d5d
Add support for single color notification LED (1/2)

Change-Id: I367af77036da9e87c6dd0df552ce4c56d945a44d
Merge 26th Oct

Merge remote-tracking branch 'github/cm-11.0' into HEAD