Add presubmit for kernel config/code changes

We don't allow kernel configs to be changed at the same time as code,
and to avoid having to comment on it on code review, add a presubmit
hook to check for it.

TEST=run new unit test

Change-Id: Ia8e824d79235c1913276e8b9b6cca659943ab85d
Commit-Ready: Olof Johansson <>
Tested-by: Olof Johansson <>
Reviewed-by: Mike Frysinger <>
2 files changed