This is a cherry pick of recent changes to OEMCrypto and ODK. Most of
these are part of the document migration to doxygen.
See http://go/wvgerrit/106005 and its parents for code reviews.
Bug: 144715340
Bug: 148232693
Bug: 167580674
Change-Id: I658f99c8117b974faed97322d61fac0f382283af