media: hantro: Enable VP8 decoding on RK3328

RK3328 SoC has the same decoder IP block as RK3399,
lets enable VP8 decoding on RK3328.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>