added changelog

changelogs/fragments/remove_dep.yml

@@ -0,0 +1,6 @@
+---
+deprecated_features:
+  - ios_linkagg - deprecate legacy module ios_linkagg
+  - ios_lldp - deprecate legacy module ios_lldp
+  - ios_bgp_address_family - deprecated attribute password in favour of password_options within neigbhors.
+  - ios_bgp_global - deprecated attributes aggregate_address, bestpath, inject_map, ipv4_with_subnet, ipv6_with_subnet, nopeerup_delay, distribute_list, address, tag, ipv6_addresses, password, route_map, route_server_context and scope