drm/amdgpu: add ras event id support

drm/amdgpu: add ras event id support

add amdgpu ras event id support to better distinguish different
error information sources in dmesg logs.

the following log will be identify by event id:
{event_id} interrupt to inform RAS event
{event_id} ACA logs
{event_id} errors statistic since from current injection/error query
{event_id} errors statistic since from gpu load

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>