Add support for Bluegiga APX4 Development Kit

This adds support for Bluegiga APX4 Development Kit. It is built around
Freescale i.MX28. Currently supported features are: ethernet, I2C, MMC,
RTC and USB. APX4 has only one ethernet port.

Signed-off-by: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Cc: Stefano Babic <sbabic@denx.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index 8d56af2..3dda252 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -796,6 +796,10 @@
 	integratorap	various
 	integratorcp	various
 
+Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
+
+	apx4devkit	i.MX28
+
 Luka Perkov <uboot@lukaperkov.net>
 
 	ib62x0		ARM926EJS