Check amdgpu_ras_mask to fix ineffective ras_mask setting
due to special asic without sram ecc enable but with poison
supported.
Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>