Fix sdcard in 4.4 for app r/w access

Fixes apps like Titanium Backup reading ext. sdcard

Change-Id: I48b2b5cd2b23306d45338ffc1d42a167cc91e7ed
jf: update sepolicy for 4.4

Change-Id: I3e8fa10e12a30d61b57b46bc1ba7c66a695fb4d7

Conflicts:
	BoardConfigCommon.mk