Add config_batterySdCardAccessibility to symbols.xml

Change-Id: I0f9dc18ddaaa52d02ba547c827db62d1d765c37f
Merge "Add config_batterySdCardAccessibility to symbols.xml" into cm-11.0
Merge branch 'cm-11.0' of git://github.com/CyanogenMod/android_frameworks_base into cd-4.4