Status Bar: Fade CM widgets on Low Profile mode

CyanogenMod's status bar widgets do not fade (Circle battery, signal
text, etc), when low profile mode is entered.

This makes them behave.

Change-Id: Ibb79390d7ec08ce1bdc86a2d5e452ab4245f474f
Allow media group to write to EXTERNAL

Change-Id: I7c96f3ea9bd158f7ae1622592f349dbea5a7142d