Take into account gateway with 'admin' suffix.
Take into account gateway with 'admin' suffix.

In some deployment the gateway key is suffixed
by 'admin' which make the collector exit with
an error status.

This commit take into account this suffix.

redhat-cip/infra-virt,enovance/infra-virt,redhat-cip/infra-virt,enovance/infra-virt