VPRN - add BGP multipath support

geant/gap_ansible/roles/promote_p_to_pe/templates/routers/nokia/router/vprn.j2

@@ -38,6 +38,28 @@
               {% endfor %}
             </best-path-selection>
             {% endif %}
+            {% if vprn.bgp.multipath is defined %}
+            <multipath>
+              {% if vprn.bgp.multipath.ibgp is defined %}
+                <ibgp>{{ vprn.bgp.multipath.ibgp }}</ibgp>
+              {% endif %}
+              {% if vprn.bgp.multipath.ebgp is defined %}
+                <ebgp>{{ vprn.bgp.multipath.ebgp }}</ebgp>
+              {% endif %}
+              {% if vprn.bgp.multipath.ipv4 is defined %}
+                <family>
+                    <family-type>ipv4</family-type>
+                    <max-paths>{{ vprn.bgp.multipath.ipv4 }}</max-paths>
+                </family>
+              {% endif %}
+              {% if vprn.bgp.multipath.ipv6 is defined %}
+                <family>
+                    <family-type>ipv6</family-type>
+                    <max-paths>{{ vprn.bgp.multipath.ipv6 }}</max-paths>
+                </family>
+              {% endif %}
+            </multipath>
+            {% endif %}
             {% with bgp_obj=vprn.bgp, bgp_group_context='vprn' %}
             {% include 'router/bgp_group.j2' %}
             {% endwith %}