prima: Reset memory allocation of BSS description

In CCX, BSS description is sent as part of beacon report. If BSS
description has random values, it leads to CCX certification failure.
Fix this by resetting memory allocated with zero. Also, reset memory
allocated to send beacon report to avoid this issue.

Change-Id: I445942b64ca9f382f8d24ca19665d6bda2341a80
CRs-Fixed: 931441
diff --git a/CORE/MAC/src/pe/lim/limScanResultUtils.c b/CORE/MAC/src/pe/lim/limScanResultUtils.c
index 875b28c..afcbc31 100644
--- a/CORE/MAC/src/pe/lim/limScanResultUtils.c
+++ b/CORE/MAC/src/pe/lim/limScanResultUtils.c
@@ -518,6 +518,8 @@
         return;
     }
 
+    vos_mem_zero(pBssDescr, frameLen);
+
     // In scan state, store scan result.
 #if defined WLAN_FEATURE_VOWIFI
     status = limCollectBssDescription(pMac, &pBssDescr->bssDescription,