tee: make tee_class constant

tee: make tee_class constant

Now that the driver core allows for struct class to be in read-only
memory, we should make all 'class' structures declared at build time
placing them into read-only memory, instead of having to be dynamically
allocated at runtime.

Cc: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lore.kernel.org/r/2023100613-lustiness-affiliate-7dcb@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>