[media] MAINTAINERS: Update solo6x10 entry

Re-add Ismael Luceno as co-maintainer (with personal email address).
Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

MAINTAINERS

@@ -8900,6 +8900,7 @@ SOFTLOGIC 6x10 MPEG CODEC
 M:	Bluecherry Maintainers <maintainers@bluecherrydvr.com>
 M:	Andrey Utkin <andrey.utkin@corp.bluecherry.net>
 M:	Andrey Utkin <andrey.krieger.utkin@gmail.com>
+M:	Ismael Luceno <ismael@iodev.co.uk>
 L:	linux-media@vger.kernel.org
 S:	Supported
 F:	drivers/media/pci/solo6x10/