Merge "Add system property for BT page scan interval" am: 40599d0f

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2542710



Change-Id: I29168976693a8a41c0384fdd9a5cb0941451b928
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>