Reland "Switch to clang-r445002"

Bug: http://b/214080353
Bug: http://b/218805949

Reland switch to clang-r445002.  The math test failures are fixed by
disabling FMA (-ffp-contract=off).

Test: - atest -a libcore.java.math.RunCSVTestsStrict
      - select bionic tests on go/abtd
      - atest -a \
gatm_algo_test:gatm_algo_test.TestAllGatmTestData/GatmAlgoTest#VerifyOutputValues/05temporaltracing_5frames_1lux_h_drc_free
      - presubmit

Change-Id: I8383edb116caa63884507932406a5f49a223d006