Revert wmgRC2UDPAddress to ekrem

Tampa is now fully back up. Revert the IRC feed to its canonical
address, rather than the very temporary socat relays that went via
Amsterdam.

This reverts commit I4342b062bc1db0d851e5a007f28034be140c6e0a.

Change-Id: I48a026eb8c96f71f7299c8f7be3ec63cccfc4797