ppc4xx: Fix compilation warnings and coding style issues in HCU4/HCU5

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/netstal/hcu4/Makefile b/board/netstal/hcu4/Makefile
index c0d719f..b13d9d4 100644
--- a/board/netstal/hcu4/Makefile
+++ b/board/netstal/hcu4/Makefile
@@ -27,11 +27,11 @@
 vpath nm_bsp.c ../common
 
 # NOBJS : Netstal common objects
-NOBJS	= fixed_sdram.o hcu_flash.o nm_bsp.o
+NOBJS	= ../common/fixed_sdram.o ../common/hcu_flash.o ../common/nm_bsp.o
 COBJS	= $(BOARD).o
 SOBJS	=
 
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c) ../common/$(NOBJS:.o=.c)
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c) $(NOBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 NOBJS	:= $(addprefix $(obj),$(NOBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))