crypto: cpt - Use request_complete helpers

Use the request_complete helpers instead of calling the completion
function directly.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/cavium/cpt/cptvf_algs.c

@@ -28,7 +28,7 @@ static void cvm_callback(u32 status, void *arg)
 {
 	struct crypto_async_request *req = (struct crypto_async_request *)arg;
 
-	req->complete(req, !status);
+	crypto_request_complete(req, !status);
 }
 
 static inline void update_input_iv(struct cpt_request_info *req_info,