getPortNumberFromNode is not correctly calculating the port number from the port name

The port name that is set in the SF, as follows is not correctly being converted to the port number:

{
"service-functions": {
"service-function": [
{
"name": "sf1",
"type": "http-header-enrichment",
"nsh-aware": true,
"ip-mgmt-address": "10.0.0.10",
"sf-data-plane-locator": [
{
"name": "sf1-dpl",
"ip": "10.0.0.10",
"port": 6633,
"transport": "service-locator:vxlan-gpe",
"service-function-forwarder": "sff1",
"service-function-ovs:ovs-port" :

<== This is the field that should be converted
}
]
}
]
}
}