ppc4xx: Add DLVision-10G board support

Board support for the Guntermann & Drunck DLVision-10G.
Adds support for multiple FPGAs per board for gdsys 405ep
architecture.
Adds support for dual link osd hardware for gdsys 405ep.

Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/gdsys/common/Makefile b/board/gdsys/common/Makefile
index 2257037..4c7fc99 100644
--- a/board/gdsys/common/Makefile
+++ b/board/gdsys/common/Makefile
@@ -31,6 +31,7 @@
 
 COBJS-$(CONFIG_IO) += miiphybb.o
 COBJS-$(CONFIG_IOCON) += osd.o
+COBJS-$(CONFIG_DLVISION_10G) += osd.o
 
 COBJS   := $(COBJS-y)
 SOBJS   =