Update clang prebuilts to clang-r365631 am: ffea8ae333
am: f5401527a3

Change-Id: I103a414d58f1c843b93db8225299b167483322d8
tree: 021a7447626934cb6730c0e55355a0116e4540e3
  1. darwin-x86/
  2. linux-x86/
  3. build-prebuilts.sh
  4. manifest.xml