nocturne-fp: copypasta script to generate keypair for signing FW

All accessories leverage the key format of Hammer therefore this
script calls Hammer's one to generate a key pair and renames them.

BUG=b:110880196
TEST=Run this script in the chroot.
BRANCH=None

Change-Id: I955f28fbe2c1dab1b5f76672c34e6022660a77ed
Reviewed-on: https://chromium-review.googlesource.com/1121632
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Nick Sanders <nsanders@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
1 file changed