Up/Down keys should change locale in BIOS screens.
Up/Down keys should change locale in BIOS screens.

BUG=chrome-os-partner:5927
TEST=manual

Install BIOS with valid bitmaps, boot to dev-mode or recovery, press arrow
keys.

Change-Id: I3946bac94cc075f9d11b4dd3fcb118807c3318c4
Reviewed-on: http://gerrit.chromium.org/gerrit/7636
Tested-by: Bill Richardson <129945214b1d548d8e49b6c29c43094f8c78057f@chromium.org>
Reviewed-by: Randall Spangler <62698fdbb84d1779579ee80c3f39fac22017e5bc@chromium.org>

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