[automerger skipped] Update Android to tzdb 2020a [Q branch] am: c3c0966dc5 -s ours am: 73dd066b6d -s ours am: adeb785de1 -s ours

am skip reason: Change-Id Id82b58f1029e588908eb7601f1893138b9abf183 with SHA-1 3d89d902ac is in history

Change-Id: Ic31ae676384fd788ec7a110429bc070409dc236e