t6-common: Add necessary HTC camera symbols

Change-Id: I45eb09af09a33d94a6bc0176ba09817ad00fbb7e
Revert "t6-common: camera requires VECTORIMPL_SYMBOLS"

This reverts commit 1f1e60896de0bc472a0544b45f1ae9aac423f3ab.

Change-Id: Ic66ddbc51fefe4d47c83a908605ea81ce8b36fd3
t6-common: Update GPS HAL for lollipop

Change-Id: Idd2aa0e2025a2f0ecc51d4806f11cd907e2bd7d0