camera: Set default metering mode as Center weighted.

This allows Auto exposure algorithm to give more weight to
center of the image duing compensation.

Bug: 7311880
Bug: 7296278
Change-Id: I4e7e4fd31d62772e007a82304f4c70aff5f1be31
Signed-off-by: Iliyan Malchev <malchev@google.com>
1 file changed