MAINTAINERS: batman-adv - update emails

Update my and Marek Lindner's email in the MAINTAINERS file
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>

MAINTAINERS

@@ -1652,9 +1652,9 @@ F:	drivers/video/backlight/
 F:	include/linux/backlight.h
 
 BATMAN ADVANCED
-M:	Marek Lindner <lindner_marek@yahoo.de>
+M:	Marek Lindner <mareklindner@neomailbox.ch>
 M:	Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
-M:	Antonio Quartulli <ordex@autistici.org>
+M:	Antonio Quartulli <antonio@meshcoding.com>
 L:	b.a.t.m.a.n@lists.open-mesh.org
 W:	http://www.open-mesh.org/
 S:	Maintained