Fix Data stop while calling

Some phones stop data when you are calling, because has little incompatibilities working with radio and data at the same time.

Change-Id: I8e2befb7a51ca91b34c73436483eaf59c564cb01
Telephony: DcTracker: Fix CDMA APN Data issues.

Fixes Data on CDMA when APN Match cannot be found
Original commit: cd2585eb3f4e2db5c8a36382ffa644fa0d1515b4

PS2: Fixed small derp that was breaking build
PS3: Change author name to original author

Change-Id: Iad7737635686fdb9d7d35099d3cf615eb47a3dfd
Telephony: check if the provisioning apn is actually empty before

checking if they are equal.  Fixes cases where the stubbed apn
(empty) equal to the empty provisioning apn.

Fixes no IP issues on CDMA data types.

Change-Id: Id7bda83778f5ce59c87463c4d44fc5768dbc4a08
core and telephony: Additional HSPAP support

Change-Id: I5e921d2308d873678d6ef67a91cff50d383a176b
telephony: set PROPERTY_DATA_NETWORK to data technology

The GSM SS is inaccurately setting the property to voice technology
instead of data technology (CDMA's SS is correct.)

Change-Id: I35a0a789bc06159f65325946e43f166f531bb1cc
Fix restoring network mode preference on reboot

When a user sets the option to use only 2G networks (for GSM networks) or its
equivalent for CDMA networks, each reboot erases that setting. That forces
the user to re-select the same option after each boot.
This (very simple) patch fixes it.

Ported from CM9:
http://review.cyanogenmod.org/#/c/16245/

Change-Id: I7ec9e155fed9f57934d7a73936f2bf425c8297fe
cdma: Restore SVDO after merge.

Allow evdo/ehrpd + voice simutaneously.
Use ro.ril.svdo=true

Change-Id: If7be25edc10f21680adbe3a059370d77a82ef076