d2; Fix audio in Hangouts

 * Add higher sample rates and stereo input device

Change-Id: Ic1d35fe3a5f1cde43bea6d3fd53f070829c34b8a
d2: camera: Add 2.4MP, 6MP, 7MP/Remove VGA resolution

Front camera behaves poorly with VGA and iommu enabled.

Change-Id: I6f382098f97f6e9a586982e71723389c8a05a952
d2: additional camera blob

Change-Id: Iefe984382e7050a937b1b89b5b3b078012d922ce