drm/amdkfd: Set number of xgmi optimized SDMA engines for arcturus

some sdma engines are optimized for xgmi on arcturus.
Signed-off-by: NOak Zeng <Oak.Zeng@amd.com>
Reviewed-by: NYong Zhao <Yong.Zhao@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdkfd/kfd_device.c

@@ -329,7 +329,8 @@ static const struct kfd_device_info arcturus_device_info = {
 	.supports_cwsr = true,
 	.needs_iommu_device = false,
 	.needs_pci_atomics = false,
-	.num_sdma_engines = 8,
+	.num_sdma_engines = 2,
+	.num_xgmi_sdma_engines = 6,
 	.num_sdma_queues_per_engine = 8,
 };