Merge "floss: Add advertise ext command" am: 327e2ec5

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2287275



Change-Id: I38294e9858d17ee556d4691c409bde9f4086307a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>