qcacld-3.0: Fix while condition in rrm_fill_beacon_ies()

In function rrm_fill_beacon_ies, do while loop is checked
for BcnNumIes if it is greater than IE length 0. Fix the
check to be greater than 2 as the first two bytes is IE
header(element ID and IE length fields both 1 byte each.)

Change-Id: I11e5de481cd49a22acafee938fbe73f839f5b0e4
CRs-Fixed: 2626729

core/mac/src/pe/rrm/rrm_api.c

@@ -828,7 +828,7 @@ rrm_fill_beacon_ies(struct mac_context *mac, uint8_t *pIes,
 		pIes += sizeof(uint16_t);
 	}
 
-	while (BcnNumIes > 0) {
+	while (BcnNumIes >= 2) {
 		len = *(pBcnIes + 1);
 		len += 2;       /* element id + length. */
 		pe_debug("EID = %d, len = %d total = %d",