CHERRY-PICK: Add conversion script to convert Butterfly board to 32bit.

Add conversion script to convert 2GB butterfly board to 32bit.

BUG=chrome-os-partner:13254
TEST=run update_chroot, verify butterfly upgraded

Change-Id: Ie9433a576b4d97feea185c365fcabe8b58121411
Original-Change-Id: Ia6e834b727e70bfb27af9c81175b5df09ef56e2e
Reviewed-on: https://gerrit.chromium.org/gerrit/32863
Tested-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-by: Dave Parker <dparker@chromium.org>
1 file changed