HTCQualcommRIL: squashed set of updates

libril: HTC8960RIL: add flag to force CDMA+LTE network mode

HTC8960RIL: update unsolicited messages from m7wls stock

RIL: make HTCQualcommRIL extend QualcommSharedRIL

Change-Id: I650945f6e03ef9f0cbfa1cf605b22859bfe20def