Upgrade turbine to 7c64f0447a967d4717adb7b1b40d8bb856f34186 am: 6f7cfa29c3

Original change: https://android-review.googlesource.com/c/platform/external/turbine/+/2674341

Change-Id: Iec79e1caf4aed1694b26b55f5f1a9564fd9fcf5b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>