Merge "simpleperf: find tools in clang prebuilts." am: 200df5e5f3 am: 4ffa95d727 am: f0bbecc8ca

Original change: https://android-review.googlesource.com/c/platform/system/extras/+/1684314

Change-Id: I6e203a597c3d2fe054d73055da51a51c0f7641c5