mpc85xx: Add support for SBC8548 (updated)

Add support for Wind River's SBC8548 reference board.

Signed-off by: Joe Hamman <joe.hamman@embeddedspecialties.com>
Signed-off by: Andy Fleming <afleming@freescale.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 43b3b79..88a38ca 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -190,6 +190,7 @@
 
 Joe Hamman <joe.hamman@embeddedspecialties.com>
 
+	sbc8548			MPC8548
 	sbc8641d		MPC8641D
 
 Klaus Heydeck <heydeck@kieback-peter.de>