project-lakitu: update chronyd to v4.1

Upgrade chronyd from v3.1 to v4.1
Remove unnecessary change:
  * Enable chronyd by default
  * Create tmpfiles
since upstream already fixed the issue
  * Use default group/user ntp instead of chrony

BUG=b/176257054
TEST=presbumit
RELEASE_NOTE=update chronyd to v4.1

Change-Id: I51ce7fbfea984c482858457b1f6ac109b22d59c4
Reviewed-on: https://cos-review.googlesource.com/c/cos/overlays/board-overlays/+/19590
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Roy Yang <royyang@google.com>
16 files changed