media: rkvdec: Add HEVC support for the VDPU381 variant

media: rkvdec: Add HEVC support for the VDPU381 variant

The VDPU381 supports HEVC decoding up to 7680x4320@30fps.
It could double that when using both decoder cores.

It support YUV420 (8 and 10 bits) as well as AFBC (not implemented
here)

The fluster score is 146/147 for JCT-VC-HEVC_V1, tested on ROCK 5B.
None of the other test suites works.

Tested-by: Diederik de Haas <didi.debian@cknow.org>  # Rock 5B
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>