i9082: ril: remove left over setDataSubscription

Change-Id: I65e1f2525ac7140f7254721802b2dac1244cb5ba
i9082: update overlay

- Enable now-available config_backKillTimeout
- Disable config_longPressOnHomeBehavior (default now set in f/b)

Change-Id: Iae6c6370d091a8fc15816d7ada41d55a0a5b0047