d2lte: introduce d2lteRIL

* Extend SamsungQualcommRIL

Change-Id: I8a4970a5a0e9cf74caf53077184e0fdc986d9e74
d2lte: add new gps props

requires new gps hal

Change-Id: I108054594dc9fd7db1bb23480fbee2eeeae19869
d2lte: Lower speakerphone volume a touch.

Recent change was causing some feedback/echo on speakerphone calls,
drop it down a few % and see how it goes.

Change-Id: Ie91f92edc1cf1f4d4cd25c41c4ddb044d5d6023b