drm/amdgpu: Enable xgmi support for Arcturus

xgmi is a high performance cross-GPU communication channel.
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -593,7 +593,7 @@ int soc15_set_ip_blocks(struct amdgpu_device *adev)
 		return -EINVAL;
 	}
 
-	if (adev->asic_type == CHIP_VEGA20)
+	if (adev->asic_type == CHIP_VEGA20 || adev->asic_type == CHIP_ARCTURUS)
 		adev->gmc.xgmi.supported = true;
 
 	if (adev->flags & AMD_IS_APU)