DEVELOPERS: change arnout's address

Signed-off-by: Arnout Vandecappelle <arnout@rnout.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit e6418ecad427f509d71f6d62920b753cf754012a)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>

DEVELOPERS

@@ -255,7 +255,7 @@ F:	configs/snps_archs38_hsdk_defconfig
 N:	Arnaud Aujon <arnaud@intelibre.fr>
 F:	package/espeak/
 
-N:	Arnout Vandecappelle <arnout@mind.be>
+N:	Arnout Vandecappelle <arnout@rnout.be>
 F:	package/arp-scan/
 F:	package/dehydrated/
 F:	package/dracut/