cos-tools/cos-dkms: Release v0.3.1

This fixes the module sort order issue and includes the glog and x/net
fixes.

BUG=b/401419633,b/407636049,b/407635558
TEST=presubmit, `docker run --rm -it
gcr.io/cos-infra-prod/cos-dkms:4a80f34-b12f7c19-df0b-44c5-91c6-776eee7a074d`

Change-Id: Ica4a8b14eca8831cd29f5a571df2dbfb2e50025b
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/99001
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
Tested-by: Kevin Berry <kpberry@google.com>
Reviewed-by: Arnav Kansal <rnv@google.com>