Frameworks/base: move custom string in cm_strings.xml file

Change-Id: I1ae0add981ed72a89e64b687210647d69a09ea3e
Merge "Frameworks/base: move custom string in cm_strings.xml file" into cm-10.2
Merge branch 'cm-10.2' of git://github.com/CyanogenMod/android_frameworks_base into cm-10.2