drm/amdgpu: enable virtual display feature for navi10

Virtual display is a pure sw implementation of KMS for use
in virtualization and for bring up and emulation.
Signed-off-by: Le.Ma <Le.Ma@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -455,6 +455,7 @@ static int dce_virtual_hw_init(void *handle)
 	case CHIP_VEGA10:
 	case CHIP_VEGA12:
 	case CHIP_VEGA20:
+	case CHIP_NAVI10:
 		break;
 	default:
 		DRM_ERROR("Virtual display unsupported ASIC type: 0x%X\n", adev->asic_type);