irda: add git tree to MAINTAINERS file

We now have an IrDA git tree on kernel.org:
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/irda-2.6.git

Signed-off-by: Samuel Ortiz <samuel@sortiz.org>

MAINTAINERS

@@ -3122,6 +3122,7 @@ M:	samuel@sortiz.org
 L:	irda-users@lists.sourceforge.net (subscribers-only)
 W:	http://irda.sourceforge.net/
 S:	Maintained
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/irda-2.6.git
 F:	Documentation/networking/irda.txt
 F:	drivers/net/irda/
 F:	include/net/irda/