drm/amdgpu: add virtual display support for raven

Same as other asics.  If enabled, exposes a user selectable
number of virtual displays.

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

drivers/gpu/drm/amd/amdgpu/soc15.c

@@ -503,6 +503,8 @@ int soc15_set_ip_blocks(struct amdgpu_device *adev)
 		amdgpu_ip_block_add(adev, &vega10_ih_ip_block);
 		amdgpu_ip_block_add(adev, &psp_v10_0_ip_block);
 		amdgpu_ip_block_add(adev, &amdgpu_pp_ip_block);
+		if (adev->enable_virtual_display || amdgpu_sriov_vf(adev))
+			amdgpu_ip_block_add(adev, &dce_virtual_ip_block);
 		amdgpu_ip_block_add(adev, &gfx_v9_0_ip_block);
 		amdgpu_ip_block_add(adev, &sdma_v4_0_ip_block);
 		amdgpu_ip_block_add(adev, &vcn_v1_0_ip_block);