Don't assume 3GPP as active app on CDMA with LTE device

IccCardProxy assumes, that on a CDMA+LTE device, the active app
is the SIM/USIM and not the RUIM/CSIM. However, for voice RUIM/CSIM
is the active app on such a device. All services, like FDN,etc. should
be tied to the active voice app.

Change-Id: Id0acc3aa68fa2c827aa43d629bc68de5a0213e64
CRs-Fixed: 428304, 506938