create_new_keys.sh uses key versions file
create_new_keys.sh uses key versions file

BUG=chromium-os:14904
TEST=manual:
  ./create_new_keys.sh
  verify that keys are created
  edit key.versions to change versions to 10 20 30 40
  ./create_new_keys.sh
  verify that keys are created with versions from the file

Change-Id: I459018267883557237ab4cc0de9b443242739346

ccaapton/vboot_reference,acorn-marvell/vboot_reference,marineam/seismograph,ionave/seismograph,marineam/seismograph,coreboot/vboot,ccaapton/vboot_reference,coreboot/vboot,geekboxzone/mmallow_external_vboot_reference,geekboxzone/mmallow_external_vboot_reference,geekboxzone/mmallow_external_vboot_reference,marineam/seismograph,coreboot/vboot,ccaapton/vboot_reference,acorn-marvell/vboot_reference,acorn-marvell/vboot_reference,acorn-marvell/vboot_reference,coreboot/vboot,coreboot/vboot,geekboxzone/mmallow_external_vboot_reference,ccaapton/vboot_reference,marineam/seismograph,geekboxzone/mmallow_external_vboot_reference,ionave/seismograph,ionave/seismograph