Add Comodo Sabre and Mammoth CT logs to log_list.json

These Certificate Transparency logs have successfully completed their
initial compliance monitoring.

TBR=robpercival@chromium.org

(cherry picked from commit 051c5b971f19b6bf84e2b8b5f2b11359263cef11)

Bug: 703700,703699
Change-Id: Ie5e451c9bf2c9df2f190e2ac1d760747ffdc099a
Reviewed-on: https://chromium-review.googlesource.com/545955
Commit-Queue: Ryan Sleevi <rsleevi@chromium.org>
Reviewed-by: Ryan Sleevi <rsleevi@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#482145}
Reviewed-on: https://chromium-review.googlesource.com/561396
Reviewed-by: Eran Messeri <eranm@chromium.org>
Cr-Commit-Position: refs/branch-heads/3112@{#528}
Cr-Branched-From: b6460e24cf59f429d69de255538d0fc7a425ccf9-refs/heads/master@{#474897}
1 file changed