MAINTAINERS: Adds Daeseok Youn to maintainers list for dgap

Adds "Daeseok Youn" to maintainers list for dgap driver.
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

MAINTAINERS

@@ -2851,6 +2851,7 @@ F:	drivers/staging/dgnc/
 DIGI EPCA PCI PRODUCTS
 M:	Lidza Louina <lidza.louina@gmail.com>
 M:	Mark Hounschell <markh@compro.net>
+M:	Daeseok Youn <daeseok.youn@gmail.com>
 L:	driverdev-devel@linuxdriverproject.org
 S:	Maintained
 F:	drivers/staging/dgap/