Blackfin: dont generate ldrs with --force

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Makefile

@@ -317,7 +317,7 @@ $(obj)u-boot.bin:	$(obj)u-boot
 		$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
 
 $(obj)u-boot.ldr:	$(obj)u-boot
-		$(LDR) -T $(CONFIG_BFIN_CPU) -f -c $@ $< $(LDR_FLAGS)
+		$(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS)
 
 $(obj)u-boot.ldr.hex:	$(obj)u-boot.ldr
 		$(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary