Print "model" instead of "HWID" when telling users about available images.
Print "model" instead of "HWID" when telling users about available images.

BUG=chromium-os:10207
TEST=manual

Run the recovery script. It should say something like this (note "model",
not "HWID"):

  There is 1 recovery image to choose from:

  0 - <quit>

  1 - Chrome Notebook
        channel:  beta-channel
        model:    IEC MARIO FISH 2330
        model:    IEC MARIO PONY 6101

  Please select a recovery image to download:

Change-Id: I40cc73974b9e673bae5f69739e1642a6a95d4638

Review URL: http://codereview.chromium.org/5716006

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