dynenv-harden.patch

dynenv-harden.patch
common/cmd_nand.c: globalized arg_off_size
include/util.h: new header to convenience functions, such as arg_off_size
common/cmd_dynenv.c (do_dynenv): use arg_off_size to sanity-check offset and to
  allow use of partition name
common/cmd_dynenv.c (do_dynenv): indicate in no uncertain terms when an update
  would not work due to Flash bits already cleared
common/cmd_dynenv.c (do_dynenv): update CFG_ENV_OFFSET after successful "dynenv
  set", so that we can write the new environment without having to reboot

- Werner Almesberger <werner@openmoko.org>