debian: changelog: new entry for version 1.2.2

debian: changelog: new entry for version 1.2.2

ifupdown2 (1.2.2) unstable; urgency=medium

  * Support for new iproute2 format (bridge vlan show)
  * Pypi install: local addons modules should be loaded first
  * Fix: link-down yes on vrf slaves
  * Fix: nlmanager: use strerror to format kernel error
  * Add: new checks for existing device with vxlan attributes
  * Ethtool: FEC: translate None and NotSupported values to link-fec off

 -- Julien Fortin <julien@cumulusnetworks.com>  Thu, 13 Dec 2018 23:42:42 -0800

Signed-off-by: Julien Fortin <julien@cumulusnetworks.com>