drm/armada: add missing interlaced support for overlay frame

Interlaced support has been missing from the overlay frame, which is
sub-optimal.  Add support for this missing feature.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Russell King 2018-07-01 17:01:26 +01:00
commit 89e0c53ccf