dhcp: upgraded package to upstream

Upgraded net-misc/dhcp to version 4.4.2_p1-r1 on amd64, arm64

BUG=b/223987299
TEST=presubmit
RELEASE_NOTE=Fixes CVE-2021-25217.

Change-Id: I145b9a3cdfbbc8e1bb5c3aa4dcbcc9449decafa7
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/portage-stable/+/30880
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
12 files changed