[Monitor Vlan] Fix a typo in hostif (sonic-net#1722)

hostif_name -> host_ifname as per the schema definition

Co-authored-by: Ubuntu <prsunny@prince-vm.vzw1i4tqyeburcdz5lrgulxi2c.yx.internal.cloudapp.net>

Author: prsunny

cfgmgr/vlanmgr.cpp

@@ -363,7 +363,7 @@ void VlanMgr::doVlanTask(Consumer &consumer)
                     mac = fvValue(i);
                     setHostVlanMac(vlan_id, mac);
                 }
-                else if (fvField(i) == "hostif_name")
+                else if (fvField(i) == "host_ifname")
                 {
                     hostif_name = fvValue(i);
                 }
@@ -381,7 +381,7 @@ void VlanMgr::doVlanTask(Consumer &consumer)
             FieldValueTuple mc("mac", mac);
             fvVector.push_back(mc);
 
-            FieldValueTuple hostif_name_fvt("hostif_name", hostif_name);
+            FieldValueTuple hostif_name_fvt("host_ifname", hostif_name);
             fvVector.push_back(hostif_name_fvt);
 
             m_appVlanTableProducer.set(key, fvVector);

orchagent/portsorch.cpp

@@ -2934,7 +2934,7 @@ void PortsOrch::doVlanTask(Consumer &consumer)
                 {
                     mac = MacAddress(fvValue(i));
                 }
-                if (fvField(i) == "hostif_name")
+                if (fvField(i) == "host_ifname")
                 {
                     hostif_name = fvValue(i);
                 }

tests/dvslib/dvs_vlan.py

@@ -15,7 +15,7 @@ def create_vlan(self, vlan):
 
     def create_vlan_hostif(self, vlan, hostif_name):
         vlan = "Vlan{}".format(vlan)
-        vlan_entry = {"vlanid": vlan,  "hostif_name": hostif_name}
+        vlan_entry = {"vlanid": vlan,  "host_ifname": hostif_name}
         self.config_db.update_entry("VLAN", vlan, vlan_entry)
 
     def remove_vlan(self, vlan):