MAINTAINERS: add maintainer for generic 6LoWPAN

Add Jukka to 6LoWPAN maintainer list. He will concentrate on
generic and bluetooth part of 6LoWPAN stack.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/MAINTAINERS b/MAINTAINERS
index 0b7007a..94ad1ba 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -152,6 +152,7 @@
 
 6LOWPAN GENERIC (BTLE/IEEE 802.15.4)
 M:	Alexander Aring <alex.aring@gmail.com>
+M:	Jukka Rissanen <jukka.rissanen@linux.intel.com>
 L:	linux-bluetooth@vger.kernel.org
 L:	linux-wpan@vger.kernel.org
 S:	Maintained