VOL-1231 Using a different flow id for the downstream flow enabling packet out

Change-Id: Iddc775284fb72267a12ea5132114ae63fdbaec16
diff --git a/voltha/adapters/openolt/openolt_flow_mgr.py b/voltha/adapters/openolt/openolt_flow_mgr.py
index 463ce68..3b0df0f 100644
--- a/voltha/adapters/openolt/openolt_flow_mgr.py
+++ b/voltha/adapters/openolt/openolt_flow_mgr.py
@@ -31,6 +31,7 @@
 DHCP_DOWNLINK_FLOW_INDEX = 6  # FIXME
 EAPOL_FLOW_INDEX = 2  # FIXME
 EAPOL_SECONDARY_FLOW_INDEX = 5  # FIXME
+DOWNSTREAM_FLOW_FOR_PACKET_OUT = 7
 LLDP_FLOW_ID = 0x3FF8  # FIXME (16376)
 
 EAP_ETH_TYPE = 0x888e
@@ -428,7 +429,7 @@
             downlink_action[VLAN_VID] = vlan_id
 
             downlink_flow_id = platform.mk_flow_id(intf_id, onu_id,
-                                                   eapol_id)
+                                               DOWNSTREAM_FLOW_FOR_PACKET_OUT)
 
             downstream_flow = openolt_pb2.Flow(
                 onu_id=onu_id, flow_id=downlink_flow_id, flow_type=DOWNSTREAM,