uacce: ensure safe queue release with state management

In the Linux kernel, the following vulnerability has been resolved:

uacce: ensure safe queue release with state management

Directly calling `put_queue` carries risks since it cannot

guarantee that resources of `uacce_queue` have been fully released

beforehand. So adding a `stop_queue` operation for the

UACCE_CMD_PUT_Q command and leaving the `put_queue` operation to

the final resource release ensures safety.

Queue states are defined as follows:

- UACCE_Q_ZOMBIE: Initial state

- UACCE_Q_INIT: After opening `uacce`

- UACCE_Q_STARTED: After `start` is issued via `ioctl`

When executing `poweroff -f` in virt while accelerator are still

working, `uacce_fops_release` and `uacce_remove` may execute

concurrently. This can cause `uacce_put_queue` within

`uacce_fops_release` to access a NULL `ops` pointer. Therefore, add

state checks to prevent accessing freed pointers.