Update prebuilt Clang to r365631c2.

clang 9.0.8 (based on r365631c2) from build 6454773.

Change-Id: I10febb9065aa76e659442453dfd4ae238946b9a9
Bug: https://github.com/android/ndk/issues/1239
Test: N/A
(cherry picked from commit 2959a25bdf8556cf6e35a2cd9290199c43cfa5ab)
3012 files changed