drm/amdgpu: Add VCN v5_0_2
Add support for VCN_5_0_2
v2: squash in RRMT enable bit fix from Sonny (Alex)
v3: sqaush in doorbell enablement patch (Alex)
v4: drop some bringup leftovers (Alex)
Signed-off-by: Sonny Jiang <sonjiang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by