mpc85xx: Add support for ATUM8548 (updated)

Add support for Instituto Atlantico's ATUM8548 board

Signed-off-by: robert lazarski <robertlazarski@gmail.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 88a38ca..2ef2f5c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -222,6 +222,10 @@
 
 	GTH			MPC860
 
+Robert Lazarski <robertlazarski@gmail.com>
+
+	ATUM8548		MPC8548
+
 The LEOX team <team@leox.org>
 
 	ELPT860			MPC860T