Implemented and tested CBOZ instruction
Created by: rosethompson
- Fixed bug with the cbo.inval clearing already cleared lines.
- Oups there was a bug in the SATP fix. RV32GC was broken by the changes.
- Oups forgot to include the 32-bit cbom test in previous commit.
- Now have CBOZ instructions working!
- Added rv32 cboz test.
- Fixed minor performance bug with CBOZ.