Match DHCP flow on sTag for FTTB service

Change-Id: I20fb862f9e6867b418640a9e119b53f8a7dc3140
diff --git a/internal/bbsim/devices/uni_port.go b/internal/bbsim/devices/uni_port.go
index 8934efb..55d07cc 100644
--- a/internal/bbsim/devices/uni_port.go
+++ b/internal/bbsim/devices/uni_port.go
@@ -18,6 +18,8 @@
 
 import (
 	"fmt"
+	"net"
+
 	"github.com/google/gopacket/layers"
 	"github.com/looplab/fsm"
 	"github.com/opencord/bbsim/internal/bbsim/packetHandlers"
@@ -25,7 +27,6 @@
 	"github.com/opencord/bbsim/internal/common"
 	omcilib "github.com/opencord/bbsim/internal/common/omci"
 	log "github.com/sirupsen/logrus"
-	"net"
 )
 
 var uniLogger = log.WithFields(log.Fields{
@@ -255,9 +256,9 @@
 	}
 }
 
-func (u *UniPort) HandleDhcp(pbit uint8, cTag int) {
+func (u *UniPort) HandleDhcp(oPbit uint8, oVid int) {
 	for _, s := range u.Services {
-		s.HandleDhcp(pbit, cTag)
+		s.HandleDhcp(oPbit, oVid)
 	}
 }