Comment 4 for bug 1630740

Fixing the module names to look like the following fixes the selinux issue:

[stack@director-osp7 /]$ grep module ./usr/share/instack-undercloud/ipxe/selinux/ipxe.te
module ipxe 1.0;
[stack@director-osp7 /]$ grep module ./usr/share/tripleo-image-elements/selinux/custom-policies/tripleo-selinux-rabbitmq.te
module tripleo-selinux-rabbitmq 1.0;
[stack@director-osp7 /]$ grep module ./usr/share/tripleo-image-elements/selinux/custom-policies/tripleo-selinux-mariadb.te
module tripleo-selinux-mariadb 1.0;

Still seems like 7.3 doesn't work with os-net-config though (but this is all it takes to get past the selinux issues0