cxl/pci: Use correct flag for sanitize polling

This is a bogus value, left behind from a previous version.

Fixes: 0c36b6a ("cxl/mbox: Add sanitization handling machinery")
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/7q3vcjqidtmxmys4n34g6b3mygvhaen7yikzxanpz56lw43fz7@7subbtbfkmyx
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Author: Davidlohr Bueso

drivers/cxl/pci.c

@@ -295,7 +295,7 @@ static int __cxl_pci_mbox_send_cmd(struct cxl_memdev_state *mds,
 		 * and allow userspace to poll(2) for completion.
 		 */
 		if (mbox_cmd->opcode == CXL_MBOX_OP_SANITIZE) {
-			if (mds->security.poll_tmo_secs != -1) {
+			if (mds->security.poll) {
 				/* hold the device throughout */
 				get_device(cxlds->dev);