CameraHal: V4LCameraAdapter: Add support for MJPEG

USBCameras support higher resolutions(above VGA) in MJPEG format only.
V4LCameraAdapter has been modified to use MJPEG as the default pixel format.
The incoming jpeg frames are decoded(into NV12) using libjpeg and
then sent for rendering.

Change-Id: Ie7f62abd7a7fad3bc1f01e048fe8f17f67890301
Signed-off-by: Saravanan Solaiyappan <saravanan.s@ti.com>
Signed-off-by: Andriy Chepurnyy <x0155536@ti.com>
Signed-off-by: Anu Sundararajan <sanuradha@ti.com>
3 files changed