BUG/MEDIUM: fd: release the port range entry in host byte order

BUG/MEDIUM: fd: release the port range entry in host byte order

The port recovered with getsockname() in _fd_delete_orphan() was given
back to the port range without being converted to host byte order. The
range then fills up with byte-swapped values which are handed out on the
next pass. Both TCP and QUIC are affected.

It is now released using get_host_port(), which takes care of the
conversion for both address families.

The issue was introduced with commit 02b7685013 ("MEDIUM: fd: Remove
fdinfo").

No backport needed.