Update riscv-isa-sim to 2020-11-02 snapshot

[mhorne]

Summary

• Switch to the official upstream, github.com/riscv/riscv-isa-sim.
• Deprecate emulators/riscv-fesvr, as it is now bundled with Spike.
• Drop patches

Test Plan

Build with poudriere testport. portlint -C is okay.

There appears to be at least one bug in FreeBSD that prevents us from booting
past mountroot, but that shouldn't block this update.

[lwhsu]

Looks good to me. Please feel free to commit it.

Let's directly remove emulators/riscv-fesvr, just add a line in ports/MOVED is fine.

emulators/riscv-isa-sim/Makefile

22

We're removing emulators/riscv-fesvr so this line is not very necessary.

[mhorne]

In D27144#606009, @lwhsu wrote:

Looks good to me. Please feel free to commit it.

Let's directly remove emulators/riscv-fesvr, just add a line in ports/MOVED is fine.

Thanks, this is a better way to handle it. Will commit shortly :)

[mhorne]

Committed, but didn't seem to close automatically.