[Invisalign2] make is_originator public and remove friends am: 1c7a3f8a am:...

[Invisalign2] make is_originator public and remove friends am: 1c7a3f8a am: 0524de7a am: 0c60ef88

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2863306



Change-Id: I96518250cd7f960891d3fdb344a589e1c544d5ca
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>