wlan: SME: Change API vos_concurrent_sessions_running naming

Replace the function name vos_concurrent_sessions_running
to vos_is_multiple_open_sessions.

CRs-Fixed: 669604
Change-Id: I0f1f5e01240dfb09ae09f43b827a84bea9adeaa6
diff --git a/CORE/SME/src/csr/csrApiScan.c b/CORE/SME/src/csr/csrApiScan.c
index 7595f90..7373696 100644
--- a/CORE/SME/src/csr/csrApiScan.c
+++ b/CORE/SME/src/csr/csrApiScan.c
@@ -6721,7 +6721,8 @@
     eHalStatus status = eHAL_STATUS_CSR_WRONG_STATE;
 
     //Do not trigger IMPS in case of concurrency
-    if (vos_concurrent_sessions_running() && csrIsAnySessionInConnectState(pMac))
+    if (vos_concurrent_open_sessions_running() &&
+        csrIsAnySessionInConnectState(pMac))
     {
         smsLog( pMac, LOG1, FL("Cannot request IMPS because Concurrent Sessions Running") );
         return (status);
@@ -6856,7 +6857,7 @@
 {
     if(eANI_BOOLEAN_FALSE == pMac->scan.fCancelIdleScan)
     {
-        if (vos_concurrent_sessions_running()) {
+        if (vos_concurrent_open_sessions_running()) {
             return;
         }
         smsLog(pMac, LOG1, "  csrScanCancelIdleScan");