ppc4xx: Add GDSys neo 405EP board support

Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/Makefile b/Makefile
index e831061..fceb8a2 100644
--- a/Makefile
+++ b/Makefile
@@ -1385,6 +1385,9 @@
 		>> $(obj)board/xilinx/ml507/config.tmp
 	@$(MKCONFIG) ml507 ppc ppc4xx ml507 xilinx
 
+neo_config:	unconfig
+	@$(MKCONFIG) $(@:_config=) ppc ppc4xx neo gdsys
+
 ocotea_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) ppc ppc4xx ocotea amcc