drm/amdgpu: add ip block number prints

User is able to follow the ip block number to write the ip_block_mask for
selecting the one which user would like to enable.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -1347,6 +1347,9 @@ int amdgpu_ip_block_add(struct amdgpu_device *adev,
 	if (!ip_block_version)
 		return -EINVAL;
 
+	DRM_DEBUG("add ip block number %d <%s>\n", adev->num_ip_blocks,
+		  ip_block_version->funcs->name);
+
 	adev->ip_blocks[adev->num_ip_blocks++].version = ip_block_version;
 
 	return 0;