Bluetooth: MGMT: Add LL Privacy Setting

This adds LL Privacy (bit 22) to Read Controller Information so the likes
of bluetoothd(1) can detect when the controller supports it or not.

Fixes: e209e5cc ("Bluetooth: MGMT: Mark LL Privacy as stable")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>