Update git submodules

Update git submodules

* Update docs/submodules/releng-xci from branch 'master'
  - Bug fix: Fetch vm names from idf

    Currently we were taking the names of the nodes to be generated from the
    NODE_NAMES variable whereas ansible was fetching the names from the
    dynamic_inventory.py which uses idf. This resulted in problems: when
    doing ha, ansible was provisioning a compute as a controller and
    vicebersa.

    This patch forces create_nodes role to fetch the name from idf and thus
    align with the naming schema of ansible

    deploy-scenario:k8-calico-nofeature
    installer-type:kubespray

    Change-Id: Id1473727405701fd9ed0cb2f1394ee8676cec337
    Signed-off-by: Manuel Buil <mbuil@suse.com>
  - Remove variable for driver

    Right now, we only support ipmi hosts (either virtual or physical) and
    that is why our json is always describing the ipmi parameters. It does
    not make sense that we have a variable which would allow to change that

    Change-Id: I7b88aca5930a73d68342e3d4cf21f9e96286c4d7
    Signed-off-by: Manuel Buil <mbuil@suse.com>
  - Bug fix: Wrong reference to vm_host_groups

    The variable should be host_group which is generated at line 32 and 35

    Change-Id: I7add3af73198ec0638dee0c8f189a3a372a78ee8
    Signed-off-by: Manuel Buil <mbuil@suse.com>