Cherry-pick: ICU-21448 Update Android ICU tzdata from 2020d to 2020f.

This is a cherry pick of https://github.com/unicode-org/icu/commit/25eb1510ec4e536fe0d0d1024b3ce71819510d0a.

Bug: 174544566
Change-Id: I019aebaba40c56451fb268ee7f60bf72d364bfdf
8 files changed