server: ignore site to site vpn status check on internallbvm (#3864)

When the state of the site to site vpn changes, the check
is done on all the virtual routers including the internal
load balancing vm as well. It is not needed to check the
state for internal load balancing vm

Author: ravening

server/src/main/java/com/cloud/network/router/VirtualNetworkApplianceManagerImpl.java

@@ -840,6 +840,10 @@ public void doInTransactionWithoutResult(final TransactionStatus status) {
     @DB
     protected void updateSite2SiteVpnConnectionState(final List<DomainRouterVO> routers) {
         for (final DomainRouterVO router : routers) {
+            if (router.getRole() == Role.INTERNAL_LB_VM) {
+                continue;
+            }
+
             final List<Site2SiteVpnConnectionVO> conns = _s2sVpnMgr.getConnectionsForRouter(router);
             if (conns == null || conns.isEmpty()) {
                 continue;