[libre-riscv-dev] added CI to soc.git as well as attempting to fix all tests

[Jacob Lifshay]

I pushed a new branch with my changes since basically everything is
changed and I didn't split my commits up very well.
On my computer, out of 234 tests, there are 4 errors and 1 failure.

https://git.libre-riscv.org/?p=soc.git;a=commitdiff;h=refs/heads/fix-tests

Jacob