tree c58cf4ff97d56a72717b8043ecc07c7fa85c3f31
parent 75f03d938c409df2b6eee690d23cbf61a5c85394
author Johnathan Van Why <jrvanwhy@google.com> 1596497091 -0700
committer Johnathan Van Why <jrvanwhy@google.com> 1596497686 -0700

Fix the broken Travis CI:

1. Update the `tock` submodule to a version that includes
   https://github.com/tock/tock/pull/2024, which fixes the OpenTitan BootROM
   download code, as well as https://github.com/tock/tock/pull/2038, which fixes
   a HiFive1 kernel bug.
2. Update the setup-qemu make target to track changes in Tock's makefile.
3. Point `test_runner` to the new QEMU location.
4. Disable the callback test. HiFive1 doesn't have a working timer driver. The
   callback test only worked before because of some other callback, which
   doesn't seem to occur with the new kernel.