qcom-common: add camera params in a proper way

Not sure if I'm doing it right though.

Change-Id: If1a3942853ce259e3ed81d6c1922e8c564891008
Revert "qcom-common: add camera params in a proper way"

Yes I did it in the wrong way :-)

This reverts commit 5f16ed8b9d5061b22c6c61b1af9463a7d2298234.
qcom-common: add camera params in a proper way

Not sure if I'm doing it right though.
Params are defined in wrapper only. No need to use Extra.h
to add these to framework since camera blob doesn't use them.

Change-Id: If1a3942853ce259e3ed81d6c1922e8c564891008
CameraWrapper: (revised) add support for metering mode

(Only changing var names)

Change-Id: Ic192c7fd545759d2d6beb039aba64b60abdb0e21

Conflicts:
	camera/CameraWrapper.cpp