chromiumos-overlay: dev-libs/nss, app-crypt/nss - Fix for CVE-2020-12403.

BUG=b/200992216
TEST=presubmit
RELEASE_NOTE=Fixed CVE-2020-12403.

cos-patch: security-moderate
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/3173713
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Pavol Marko <pmarko@chromium.org>
Tested-by: Meena Shanmugam <meenashanmugam@google.com>
Commit-Queue: Meena Shanmugam <meenashanmugam@google.com>

Change-Id: I303c1e512ffc06487172c9e24d2fa1f0c8a33e8d
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/chromiumos-overlay/+/22590
Tested-by: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
Reviewed-by: Roy Yang <royyang@google.com>
(cherry picked from commit 021e01b3d7664a1f88c4d33c85392c0d770e74f9)
Reviewed-on: https://cos-review.googlesource.com/c/third_party/overlays/chromiumos-overlay/+/22930
Reviewed-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
Main-Branch-Verified: Cusky Presubmit Bot <presubmit@cos-infra-prod.iam.gserviceaccount.com>
8 files changed