Add tzs2.dat to version control with LICENSE

Including tzs2.dat into the tzdata APEX to flush out technical and
non-technical issues.

Generated by running ./run-data-pipeline.sh with the changes from this
commit.

Bug: 152747091
Bug: 163020329
Bug: 165282143
Test: Ran ./run-data-pipeline.sh, inspected the output
Change-Id: I254c9a47fd8fd7b60c051c1607f32774305890e9
6 files changed