kabi/severities: Add a kabi exception for drivers/tee/tee
    
    According to the partner modules database, the structs of this driver
    are not used by anything external so make a kABI exception for them.
    
    Do that on purpose so that any external module using this fails to load
    instead of causing a potential memory corruption due to a kabi
    workaround which would use the same offset but for a different thing:
    
    -	struct dma_buf *dmabuf;
    +	refcount_t refcount;
    
    See upstream commit
    
      dfd0743f1d9e ("tee: handle lookup of shm with reference count 0")
    
    Signed-off-by: Borislav Petkov <bp@suse.de>