libva: Add slice parameter buffer structure for VP8

BZ: 93296

Add slice buffer structure for VP8 in accordance with other codecs.

Change-Id: I712ef566abb783fab53146043357b7beff49b6de
Signed-off-by: Tianmi Chen <[email protected]>
Reviewed-on: http://android.intel.com:8080/98565
Reviewed-by: Shi, PingX <[email protected]>
Reviewed-by: cactus <[email protected]>
Tested-by: Shi, PingX <[email protected]>
Reviewed-by: buildbot <[email protected]>
Tested-by: buildbot <[email protected]>
1 file changed