Revert "drm/amdgpu: No longer insert ras blocks into ras_list if it already exists in ras_list"

This reverts commit df4f0041.

Xgmi ras initialization had been moved from .late_init to early_init,
the defect of repeated calling amdgpu_ras_register_ras_block had been
fixed, so revert this patch.
Signed-off-by: yipechai <YiPeng.Chai@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c

@@ -2763,19 +2763,12 @@ int amdgpu_ras_reset_gpu(struct amdgpu_device *adev)
 int amdgpu_ras_register_ras_block(struct amdgpu_device *adev,
 		struct amdgpu_ras_block_object *ras_block_obj)
 {
-	struct amdgpu_ras_block_object *obj, *tmp;
 	if (!adev || !ras_block_obj)
 		return -EINVAL;
 
 	if (!amdgpu_ras_asic_supported(adev))
 		return 0;
 
-	/* If the ras object is in ras_list, don't add it again */
-	list_for_each_entry_safe(obj, tmp, &adev->ras_list, node) {
-		if (obj == ras_block_obj)
-			return 0;
-	}
-
 	INIT_LIST_HEAD(&ras_block_obj->node);
 	list_add_tail(&ras_block_obj->node, &adev->ras_list);