drm/amdgpu: add ih cam support for IH 4.4.4
Same as IH 4.4.2.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Reviewed-by: Amber Lin <Amber.Lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by