frameworks: av: camera: add missing HTC cam parameter

* add CAPTURE_MODE_EIS

Change-Id: I767f7e6ecd0164ae65d8a607fdc1a7166c8886ec
Camera: Support obtaining camera memory from MemoryHeapIon

* Exynos 5 devices want the ION file descriptor from MemoryHeapIon

Change-Id: I9e445cf24c15713f713181667e7b7caa1a96592e