Camera wrapper

Does nothing special as of now, just wraps vendor HAL module.

Conflicts:
	p880.mk

Change-Id: Id73d0c9a091b0404a96f8ac70884e11fb6df24e7
CameraWrapper: ISO modes and exposure compensation support

Change-Id: Ib5f9c6d2e341a517f822f9362b00be2be5a74fc6