RISC-V Crypto Architectural Tests

Notes on the Cryptography Architectural Tests

Useful Links

Getting Started

Make sure that you are in the root of the riscv-crypto repository, and run the workspace setup script:
```
source bin/conf.sh
```
This makes sure that the spike and sail simulators (if they are built) are in the $PATH, which is needed by the architectural test framework.
Ensure the riscv-arch-test sub-module is checked out:
```
git submodule update --init extern/riscv-arch-test
```

TODO:

Spike and Sail build/run instructions. This will be added after some pull requests to upstream Sail/Spike repositories are merged.