check gfx error count in both ras querry function and
ras interrupt handler.

gfx ras is still disabled by default due to known stability
issue found in gpu reset.
Signed-off-by: NDennis Li <Dennis.Li@amd.com>
Reviewed-by: NTao Zhou <tao.zhou1@amd.com>
Reviewed-by: NHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>