LGEQualcommUiccRIL: New subclass to deal with the latest qcom RIL

Yet another generation of CAF RIL, this one is necessary to support
multi-RAT (GSM/LTE) radios...

Change-Id: I87b5126ffbc16f3ccc7caaf227354edf95543c35

LGEQualcommUiccRIL: Fix LTE support

Change-Id: Ifab51550113926d6d1b6c421e805f456d95faca8

LGEQualcommUiccRIL: Fix multi-PDP support

Multiple concurrent PDPs are now functional, allowing the back-compat
singlepdp flag to be disabled

Change-Id: I8ef55e96b9f05d4a4dd8dbbaeddf6d48ded7fc67

Update to 4.2 APIs