system.prop: remove custom class and update ril properties.

Change-Id: Ia413fc107bbfb219dec73b6e43d9263a150be770
jewel: update storage configuration for 4.4

Change-Id: I638b50ac53b19ba788168acfd8fa1b7f8f6a31d7
Merge "jewel: update storage configuration for 4.4" into cm-11.0
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0