cxl: Fix comment regarding cxl_query_cmd() return data

The code indicates that the min of n_commands and total commands
is returned. The comment incorrectly says it's the max(). Correct
comment to min().
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Link: https://patch.msgid.link/20240913223216.3234173-1-dave.jiang@intel.comSigned-off-by: Dave Jiang <dave.jiang@intel.com>

drivers/cxl/core/mbox.c

@@ -546,7 +546,7 @@ int cxl_query_cmd(struct cxl_memdev *cxlmd,
 		return put_user(ARRAY_SIZE(cxl_mem_commands), &q->n_commands);
 
 	/*
-	 * otherwise, return max(n_commands, total commands) cxl_command_info
+	 * otherwise, return min(n_commands, total commands) cxl_command_info
 	 * structures.
 	 */
 	cxl_for_each_cmd(cmd) {