media: mtk-vcodec: vdec: Support H264 profile control

Add H264 profiles supported by the MediaTek 8173 decoder.

[acourbot: fix commit log a bit, move to mtk_vcodec_dec.c]

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>