[automerger skipped] RESTRICT AUTOMERGE Update Android to tzdb 2020c [R] am: cc6cfd5336 -s ours

am skip reason: Change-Id I2231b757637c21ab2c76ebb2b127b087b46f422c with SHA-1 07ffc990b2 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/icu/+/12996454

Change-Id: I0bb0f354030c792799b62204c544065b825761b1