MAINTAINERS: update IDE entry

By a popular demand quilt tree was replaced by a git one.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

MAINTAINERS

@@ -2743,7 +2743,7 @@ IDE SUBSYSTEM
 P:	Bartlomiej Zolnierkiewicz
 M:	bzolnier@gmail.com
 L:	linux-ide@vger.kernel.org
-T:	quilt kernel.org/pub/linux/kernel/people/bart/pata-2.6/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6.git
 S:	Maintained
 F:	Documentation/ide/
 F:	drivers/ide/