MAINTAINERS: Add section for MRF24J40 IEEE 802.15.4 radio driver

Alan is the original author of the driver. This change was discussed
with the 802.15.4 subsystem maintainer, Alexander Aring.
Signed-off-by: NAlan Ott <alan@signal11.us>
Acked-by: NAlexander Aring <alex.aring@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -5978,6 +5978,12 @@ T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
 F:	drivers/media/radio/radio-mr800.c
 
+MRF24J40 IEEE 802.15.4 RADIO DRIVER
+M:	Alan Ott <alan@signal11.us>
+L:	linux-wpan@vger.kernel.org
+S:	Maintained
+F:	drivers/net/ieee802154/mrf24j40.c
+
 MSI LAPTOP SUPPORT
 M:	"Lee, Chun-Yi" <jlee@suse.com>
 L:	platform-driver-x86@vger.kernel.org