media: cedrus: h264: Support profile controls

Cedrus supports H.264 profiles from Baseline to High,
except for the Extended profile

Expose the V4L2_CID_MPEG_VIDEO_H264_PROFILE so that
userspace can query the driver for the supported
profiles and levels.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Tested-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>