Combine infra/ci core/admin gerrit groups

This is the result of running:

    find modules/openstack_project/files/gerrit/acls/ -type f \
        -name "*.config" -exec ./tools/normalize_acl.py {} 6 \;

Change-Id: I7aa27b859529b2bc8a990d6272334222996cbbc4
Merge "Combine infra/ci core/admin gerrit groups"