drm/amdgpu: support check xgmi/walf error mask bit for aldebaran

The pcs error count should be determined by PCS ERROR status and
PCS ERROR MASK registers, only PCS ERROR status register can not
refect error counts accurately.

Changed from V1:
	remove clean noncorrectable mask registers
	optimize query pcs error status

Changed from V2:
	remove check mask_value bits
	correct set value corresponding bit

Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>