Move struct amdgpu_video_codec_info, struct amdgpu_video_codecs, and helpers into a new
amdgpu_video_codecs.h file.
This is part of the ongoing effort to reduce the size of amdgpu.h into their own respective
separate headers.
Signed-off-by: Shahyan Soltani <shahyan.soltani@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>