Fix: Use only relevant filter-lists in Junos policy statement (#2613)

The Junos policy statements should do prefix-list match only on address families used by the device

Fixes #2612

Author: ssasso

netsim/ansible/templates/routing/_route_policy_junos.j2

@@ -93,7 +93,7 @@ policy-options {
 {#  if entry contains a prefix, we must add different (term) entries for ipv4 and ipv6 #}
 {#   as per juniper documentation: Prefixes specified in a from statement must be either all IPv4 addresses or all IPv6 addresses. #}
 {%     if 'prefix' in p_entry.match|default({}) %}
-{%       for match_af in ['ipv4', 'ipv6'] %}
+{%       for match_af in af if match_af in ['ipv4', 'ipv6'] %}
     term seq{{seq}}_{{match_af}} {
 {{     common_route_map_entry(p_entry,match_af) }}
 {{     common_route_map_action(p_entry) }}