drm/amdgpu:add MEC_STORAGE ucode id for sriov

for sriov, SMC need MEC_STORAGE reserved in fw bo.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Frank Min <frank.min@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
6 files changed