Camera: Set device executor thread name

Set a specific thread name for the executor service
instead of using the default generated thread pool
name.
Additionally use the same default thread factory.

Bug: 359709863
Flag: com.android.internal.camera.flags.single_thread_executor_naming
Test: Camera CTS

Change-Id: I6d56ed0494040dbff2a983977aace57a2f6bdc31