Add a review for integration with new Go TPM code.

This code review contains a diff that adds support and instructions for
supporting genaik from github.com/google/go-tpm/examples/genaik. The genaik
program removes the last dependency on TrouSerS.

Adding this diff for completeness, since it was reviewed and LGTM'd by jlm last
week; will delete in the next commit.
Remove LGTM'd diff for TPM integration.

This commit was reviewed and approved in a meeting with jlm last week.