powerpc: mpc8569mds: Update config and maintainer

Enable DHCP command by default. Update maintainer info.

Signed-off-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/mpc8569mds/MAINTAINERS b/board/freescale/mpc8569mds/MAINTAINERS
index c181407..49a9361 100644
--- a/board/freescale/mpc8569mds/MAINTAINERS
+++ b/board/freescale/mpc8569mds/MAINTAINERS
@@ -1,5 +1,5 @@
 MPC8569MDS BOARD
-#M:	-
+M:	York Sun <york.sun@nxp.com>
 S:	Maintained
 F:	board/freescale/mpc8569mds/
 F:	include/configs/MPC8569MDS.h