Add an override for 5.4 on the EOL page for now.

We can revert this once 5.4 has been moved to $OLDRELEASES, which will take
place once Stas confirms that there won't be an additional release, since the
door was left open in the 5.4.45 announcement.

eol.php

@@ -38,7 +38,7 @@
 		</tr>
 	</thead>
 	<tbody>
-		<?php foreach (get_eol_branches() as $major => $branches): ?>
+		<?php foreach (get_eol_branches(array('5.4.45')) as $major => $branches): ?>
 			<?php foreach ($branches as $branch => $detail): ?>
 				<?php $eolPeriod = format_interval('@'.$detail['date'], null) ?>
 					<tr>