Merge "Add option to emit ThinLTO indexes and imports for MLGO training" into main am: bc9d35168c am: 800684245f

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2812353

Change-Id: I4a859b4b064f9ab658cb47ebde8a08a1c5cb026b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>