Add Caliptra AES256 ECB engine as RoCC accelerator

[abejgonzalez]

Adds https://github.com/chipsalliance/Caliptra 's AES 256 ECB cryptography core as a RoCC accelerator. Also adds a repo to help users create RoCC memory streaming accelerators (i.e. extend the classes/traits to quickly create a streaming accel).

Related PRs / Issues:

Type of change:

• Bug fix
• New feature
• Other enhancement

Impact:

• RTL change
• Software change (RISC-V software)
• Build system change
• Other

Contributor Checklist:

• Did you set main as the base branch?
• Is this PR's title suitable for inclusion in the changelog and have you added a changelog:<topic> label?
• Did you state the type-of-change/impact?
• Did you delete any extraneous prints/debugging code?
• Did you mark the PR with a changelog: label?
• (If applicable) Did you update the conda .conda-lock.yml file if you updated the conda requirements file?
• (If applicable) Did you add documentation for the feature?
• (If applicable) Did you add a test demonstrating the PR?

• (If applicable) Did you mark the PR as Please Backport?

[jerryz123]

The submodule should also get added to .github/scripts/check-commit.sh

[abejgonzalez]

Requires #1639 before this PR is merged.

[abejgonzalez]

@Mergifyio rebase

[mergify]

rebase

❌ Base branch update has failed

Git reported the following error:

Rebasing (1/4)
Rebasing (2/4)
Rebasing (3/4)
Rebasing (4/4)
Auto-merging .github/scripts/check-commit.sh
CONFLICT (content): Merge conflict in .github/scripts/check-commit.sh
error: could not apply 7525b9fd... Fix CI | Fix Verilator compile
hint: Resolve all conflicts manually, mark them as resolved with
hint: "git add/rm <conflicted_files>", then run "git rebase --continue".
hint: You can instead skip this commit: run "git rebase --skip".
hint: To abort and get back to the state before "git rebase", run "git rebase --abort".
Could not apply 7525b9fd... Fix CI | Fix Verilator compile