chromeos-base/chromeos-base: reduce tcp_rto_min_us value to 5ms

Optimize TCP behavior for GCP to GCP connections

BUG=b/339642517
TEST=presubmit
RELEASE_NOTE=None

Change-Id: I36586914734e0d09506647f9b009f2fec41e5887
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/78479
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Kevin Berry <kpberry@google.com>
Reviewed-by: Arnav Kansal <rnv@google.com>
3 files changed