Make _create_loginable_secgroup_rule non-private

_create_loginable_secgroup_rule() is currently private
which is not necessarily required to be private

Implements: blueprint tempest-scenario-manager-stable
Signed-off by: Soniya Vyas<svyas@redhat.com>

Change-Id: Ice42441874bdbc8f58eb2a07320eb484b8780502
2 files changed