BLTsville docs: Added BVDITHER_GOOD_ON, BVDITHER_BETTER_ON, & BVDITHER_BEST_ON
BLTsville docs: Added BVDITHER_GOOD_ON, BVDITHER_BETTER_ON, & BVDITHER_BEST_ON

Change-Id: I7c23c6575c35f2e2358f5903c6156eae41a28224
Signed-off-by: Rick Tillery <d9686acfea9c9dda5d42aefb14ca106703d92006@ti.com>

omapzoom/platform-external-bltsville,omapzoom/platform-external-bltsville,omapzoom/platform-external-bltsville,omapzoom/platform-external-bltsville