Camera: Fix color space info for camera buffers

Earlier understanding of color space flag for video
buffer was wrong. Video encoder actually assumes the
buffer is in 601 full range, and the flag specifies
which color space the encoder converts to.

As a result, camera HAL needs to set 709 in order
for encoder to do a 601->709 conversion.

Change-Id: Ia694dd83c65d43f87b0ebab8553de4e2a482ffe0
Bug: 17785855
7 files changed