get_maintainer: Add Alan to .get_maintainer.ignore

Alan asked to be added to the .get_maintainer.ignore list.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YvN30KhO9aD5Sza9@kiliSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

.get_maintainer.ignore

+Alan Cox <alan@lxorguk.ukuu.org.uk>
+Alan Cox <root@hraefn.swansea.linux.org.uk>
 Christoph Hellwig <hch@lst.de>
 Marc Gonzalez <marc.w.gonzalez@free.fr>