edge_port: add encapsulation to the template

geant/gap_ansible/roles/edge_port/templates/nokia/edge_port_create.j2

@@ -8,6 +8,7 @@
           <description>PHY {{ ep.edge_port_type }} {{ partner_name }} P_{{ ep.edge_port_name }} | {{ member.interface_description }}</description>
           <ethernet>
               <mode>access</mode>
+              <encap-type>{{ ep.encapsulation }}</encap-type>
               <mtu>{{ mtu_phy | default(9192) }}</mtu>
             {% if edge_port_lldp_enable_map[ep.edge_port_type] is true %}
               <lldp>
@@ -37,6 +38,7 @@
       <lag xmlns="urn:nokia.com:sros:ns:yang:sr:conf" xmlns:nc="urn:ietf:params:xml:ns:netconf:base:1.0" xmlns:nokia-attr="urn:nokia.com:sros:ns:yang:sr:attributes" alu:operation="replace">
           <lag-name>{{ ep.edge_port_name | lower }}</lag-name>
           <admin-state>enable</admin-state>
+          <encap-type>{{ ep.encapsulation }}</encap-type>
           {% if ep.geant_ga_id is string %}
           <description>LAG {{ ep.edge_port_type }} {{ partner_name }} ${{ ep.geant_ga_id }} |</description>
           {% else %}