vpp: fix advanced deinterlacing on Sandybridge and Ivybridge.

This fixes support for Motion Adaptive deinterlacing mode on both
Sandybridge and Ivybridge platforms. In particular, correct field
ordering is now supported, and STMM ping-pong buffering is added.

v2: changed STMM surface format to Y800 for a single plane.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
vpp: add support for Motion-Compensated deinterlacing on Ivybridge.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>