Prevents CFE from flashing to the second image offset. Fix up the rootfs
length on first boot else CFE will complain.
SVN-Revision: 31876
--output $(BIN_DIR)/openwrt-$(4)-$(1)-cfe.bin.tmp \
--boardid $(2) --chipid $(3) --entry $(KERNEL_ENTRY) \
--load-addr $(LOADADDR) --rsa-signature "$(5)" \
- $(6) $(7) $(8) $(9)
+ --pad 4 $(6) $(7) $(8) $(9)
# Fix up header
$(STAGING_DIR_HOST)/bin/spw303v -i $(BIN_DIR)/openwrt-$(4)-$(1)-cfe.bin.tmp \
-o $(BIN_DIR)/openwrt-$(4)-$(1)-cfe-sysupgrade.bin