Enable data after phone switches from CDMA to GSM

Before initiating emergency call on CDMA
phone data will be disabled, if while in
emergency call phone switches from
CDMA to GSM then data will be diabled state
after ending call data will not enable since
phone already switched to GSM.

Enable data when phone switches to GSM while in
emergency call.

Bug: 63513900
Change-Id: Ia5cbe19bffdf4692347fed20bfadcad3ff780ac9