MX53: Add initial support for MX53SMD board.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index ff43a9a..07237e3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -639,6 +639,7 @@
 Fabio Estevam <fabio.estevam@freescale.com>
 
 	mx31pdk		i.MX31
+	mx53smd		i.MX53
 
 Peter Figuli <peposh@etc.sk>