Settings: CS translation - AOSP

- fix for AOSP string

Change-Id: Iec22ddcbcc44b80a608912965f1f8244c8a8bdc5
Settings: Fix value from being overwritten with null.

After awhile this value becomes null for unknown reasons.
Switch back to a non-changing static final for the non-multi-sim case.

Change-Id: I9248a545ed35ec10048781b21a3e6a6b17e96d74
Merge "Settings: CS translation - AOSP" into cm-11.0
Merge remote-tracking branch 'upstream/cm-11.0' into HEAD