net/xsc: suppress assignment warning

This issue was reported by PVS studio, described as:
https://pvs-studio.com/en/docs/warnings/v1048/

This warning is harmless since both structs have the same size.
The tool is just being annoying, so we should suppress it.

Signed-off-by: Rong Qian <[email protected]>
Signed-off-by: Renyong Wan <[email protected]>

Author: Renyong Wan

drivers/net/xsc/xsc_vfio_mbox.c

@@ -572,7 +572,7 @@ xsc_vfio_mbox_init(struct xsc_dev *xdev)
 	cmdq->req_lay = cmdq->req_mz->addr;
 
 	snprintf(name, RTE_MEMZONE_NAMESIZE, "%s_cmd_cq", xdev->pci_dev->device.name);
-	size = (1 << XSC_CMDQ_DEPTH_LOG) * sizeof(struct xsc_cmdq_rsp_layout);
+	size = (1 << XSC_CMDQ_DEPTH_LOG) * sizeof(struct xsc_cmdq_rsp_layout); /* -V1048 */
 	cmdq->rsp_mz = rte_memzone_reserve_aligned(name,
 						   size, SOCKET_ID_ANY,
 						   RTE_MEMZONE_IOVA_CONTIG,