Add support for both I2C busses

* When using the dev board without an enviro, the crypto is on bus 0. In
any other scenario it would be on 1.
* Enumerating this way (ordered by the tuples) ensures that on a dev
board the dev board crypto will always be used.

Change-Id: I5a8c330e5f442bdb4bca2296b267c3c0bfb685f2