Add an explanation of the two rust libraries, and instructions for
building. Note that the bindings are not included in the tarball.
BUG=None
BRANCH=None
TEST=None
Change-Id: I05b1b5821554f8faee7728f899d51b6e8e9bf5be
Signed-off-by: Evan Benn <evanbenn@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/66618
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
