crypto: api - remove unneeded semicolon

Fixes coccicheck warning:

./include/linux/crypto.h:573:2-3: Unneeded semicolon
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

include/linux/crypto.h

@@ -570,7 +570,7 @@ static inline int crypto_wait_req(int err, struct crypto_wait *wait)
 		reinit_completion(&wait->completion);
 		err = wait->err;
 		break;
-	};
+	}
 
 	return err;
 }