SystemUI: Status bar UI cleanup for MSIM and roaming

Change-Id: Id0a94962ff062daeba1988ccf799ca1f8c3e2e1d
Keyguard: Change SUB label to SIM

Change-Id: I9e96b42bd072e114c453c1b031776bd66425228d
Move UICC storage string to cm_strings

Change-Id: If7837bbd28663080713e2014c7a1c858cdb40c7e
SystemUI: Fix network label regression

Change-Id: Idb9cd41e3e7e4951eb8c1ad5fe5321c2420f9d32
SystemUI: Avoid NPEs during status bar recreation for MSIM

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

Change-Id: Id131ffac497f46a753a97b479823e51fda7c412c

Conflicts:

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