From https://lore.kernel.org/all/20251230-ncm-refactor-v1-0-793e347bc7a7@google.com/
To fix slow startup, and the issue where the system fails
to release ncm devices when shutting down after plugging
or unplugging a usb hub, which references a null pointer
This is important for devices without serial ports,
such as the Elixir, because they enable NCM
by default for headless debugging,
making it easy to trigger related bugs.
Signed-off-by: CodeChenL <2540735020@qq.com>
