proprietary-text: add radio props rild and libril.so

Change-Id: I867f4f435059bb189f4706b8e7a71cdbb5fd5c49
system.prop: update and cleanup flags.

Change-Id: I69f44a18c13cf4f21600d7622d3eb594ea467339
Merge "system.prop: update and cleanup flags." into cm-10.1
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1