CameraHal: Add support for YUY2 preview callbacks

- The currently used Gralloc buffers for preview
  are limited to only NV12 pixelformat. In order
  to support this type of preview callbacks,
  CameraHal will internally convert from NV12 to
  YUY2.

Bug: 6419136

Change-Id: I879e32d4b2142bdd0a1f89fe7c5496d250039b73
Signed-off-by: Emilian Peev <epeev@mm-sol.com>
2 files changed