debmirror updates

  * Add :
    - elasticsearch-6.x - include by default
    - salt-formulas     - include by default
    - opencontrail-4.0
    - opencontrail-4.1
  * Update:
    - ubuntu - update regex
      - drop old 4.4.0 kernels
    - elasticsearch-5.x|percona|extra - update regexp

Prod-related: PROD-26226 (PROD:26226)

Change-Id: Ic6a02d1c1d735794cc8ec94707b8f06a4f83c759
(cherry picked from commit a75ee02bfb0ae8fb5d2fbb2e414e0b836193067c)
diff --git a/defaults/debmirror.yml b/defaults/debmirror.yml
index 3995118..b572dcc 100644
--- a/defaults/debmirror.yml
+++ b/defaults/debmirror.yml
@@ -7,13 +7,17 @@
     mirror_mirantis_com_ceph_luminous_xenial_force: False
     mirror_mirantis_com_docker_xenial_force: False
     mirror_mirantis_com_elasticsearch_5_x_xenial_force: False
+    mirror_mirantis_com_elasticsearch_6_x_xenial_force: False
     mirror_mirantis_com_elasticsearch_curator_5_xenial_force: False
     mirror_mirantis_com_extra_xenial_force: False
     mirror_mirantis_com_glusterfs_3_8_xenial_force: False
     mirror_mirantis_com_maas_xenial_force: False
+    mirror_mirantis_com_oc40_xenial_force: False
+    mirror_mirantis_com_oc41_xenial_force: False
     mirror_mirantis_com_openstack_pike_xenial_force: False
     mirror_mirantis_com_openstack_queens_xenial_force: False
     mirror_mirantis_com_percona_xenial_force: False
+    mirror_mirantis_com_salt-formulas_xenial_force: True
     mirror_mirantis_com_saltstack_2016_3_xenial_force: False
     mirror_mirantis_com_saltstack_2017_7_xenial_force: False
     mirror_mirantis_com_td_agent_xenial_force: False