bird peering.py add receive_limit

_modules/peering.py

@@ -26,6 +26,9 @@ def all_peerings(proto):
         if 'import_filter' in peerproto:
             rule.append('\timport {};'.format(peerproto['import_filter']))
 
+        if 'receive_limit' in peerproto:
+            rule.append('\treceive limit {} restart;'.format(peerproto['receive_limit']))
+
         if 'self' in peerproto:
             rule.append('\tsource address {};'.format(peerproto['self']))
         else: