powerpc/ppc4xx: Make gdsys 405ep boards reset more generic

In order to add boards that have different hardware for fpga reset,
any 405ep gdsys board now provides these functions:

void gd405ep_init(void);
void gd405ep_set_fpga_reset(unsigned state);
void gd405ep_setup_hw(void);
int gd405ep_get_fpga_done(unsigned fpga);

Signed-off-by: Dirk Eibach <eibach@gdsys.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/gdsys/405ep/Makefile b/board/gdsys/405ep/Makefile
index feb5cec..38e5ea4 100644
--- a/board/gdsys/405ep/Makefile
+++ b/board/gdsys/405ep/Makefile
@@ -25,6 +25,7 @@
 
 LIB	= $(obj)lib$(BOARD).o
 
+COBJS-$(CONFIG_NEO) += neo.o
 COBJS-$(CONFIG_IO) += io.o
 COBJS-$(CONFIG_IOCON) += iocon.o
 COBJS-$(CONFIG_DLVISION_10G) += dlvision-10g.o