drm/amdgpu/display: set gpu vm flag for renoir

It won't get used unless the driver allows the gtt domain for
display buffers which is controlled elsewhere.

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

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -910,6 +910,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev)
 	case CHIP_CARRIZO:
 	case CHIP_STONEY:
 	case CHIP_RAVEN:
+	case CHIP_RENOIR:
 		init_data.flags.gpu_vm_support = true;
 		break;
 	default: