x86, realmode: build fix: remove duplicate build

Real-mode binary was built twice. This patch fixes
the issue by making realmode.relocs as target for
realmode.bin.

[ hpa: removed the direct dependency on realmode.relocs in
  arch/x86/realmode/Makefile ]
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Link: http://lkml.kernel.org/r/1336595106-21135-1-git-send-email-jarkko.sakkinen@intel.com
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

arch/x86/realmode/Makefile

@@ -11,10 +11,7 @@ subdir- := rm
 
 obj-y += rmpiggy.o
 
-$(obj)/rmpiggy.o: $(obj)/rm/realmode.relocs $(obj)/rm/realmode.bin
+$(obj)/rmpiggy.o: $(obj)/rm/realmode.bin
 
 $(obj)/rm/realmode.bin: FORCE
 	$(Q)$(MAKE) $(build)=$(obj)/rm $@
-
-$(obj)/rm/realmode.relocs: FORCE
-	$(Q)$(MAKE) $(build)=$(obj)/rm $@

arch/x86/realmode/rm/Makefile

@@ -48,7 +48,7 @@ $(obj)/realmode.elf: $(obj)/realmode.lds $(REALMODE_OBJS) FORCE
 
 OBJCOPYFLAGS_realmode.bin := -O binary
 
-$(obj)/realmode.bin: $(obj)/realmode.elf
+$(obj)/realmode.bin: $(obj)/realmode.elf $(obj)/realmode.relocs
 	$(call if_changed,objcopy)
 
 quiet_cmd_relocs = RELOCS  $@