drm/amdgpu: Support umc node harvest config on umc v8_10

Don't need to query error count and error address on harvest umc nodes.
v2: Fix code bug, use active_mask instead of harvsest_config
    and remove unnecessary argument in LOOP macro.
v3: Leave adev->gmc.num_umc unchanged.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>