Set themes to install internal only

Themes should not be moveable to sdcard. Before this patch the new
style themes installed with forward lock would fail.

Change-Id: Iea50f5526b1c2c56a825757eac5bf4bb01b4686d
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_frameworks_base into cm-11.0