Merge "Synchronize rootcanal periodic tasks to avoid a race with packet delivery." am: c1353c4a

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2420201



Change-Id: I8292bc63d9439ba0f14a2e1e7a33ed0e9e84072b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>