mpc83xx: update the CREDITS and MAINTAINERS

update the CREDITS and MAINTAINERS.

Signed-off-by: Dave Liu <daveliu@freescale.com>
diff --git a/CREDITS b/CREDITS
index 13150ae..1130c9e 100644
--- a/CREDITS
+++ b/CREDITS
@@ -303,6 +303,11 @@
 D: Support for SSV ADNP/ESC1 (Nios Cyclone)
 W: http://www.li-pro.net
 
+N: Dave Liu
+E: daveliu@freescale.com
+D: Support for MPC832x, MPC8360, MPC837x
+W: www.freescale.com
+
 N: Raymond Lo
 E: lo@routefree.com
 D: Support for DOS partitions