qcacmn: Fix issue about generating MBSSID frames

When generating MBSSID beacon/probe response frames, it
misses the last IE in the MBSSID ie list. To address it,
correcting the comparing length.

CRs-Fixed: 3609711
Change-Id: Ia406be0ade901c9bc01698faec473bd25c59dfb3

umac/scan/dispatcher/src/wlan_scan_utils_api.c

@@ -3076,7 +3076,7 @@ static uint32_t util_gen_new_ie(uint8_t *ie, uint32_t ielen,
 	tmp_new = sub_copy;
 	while ((subie_len > 0) &&
 	       (((tmp_new + tmp_new[1] + MIN_IE_LEN) - sub_copy) <=
-		(subie_len - 1))) {
+		subie_len)) {
 		if (!(tmp_new[0] == WLAN_ELEMID_NONTX_BSSID_CAP ||
 		      tmp_new[0] == WLAN_ELEMID_SSID ||
 		      tmp_new[0] == WLAN_ELEMID_MULTI_BSSID_IDX ||