qeth: use default napi weight

Since commit 82dc3c63
"net: introduce NAPI_POLL_WEIGHT" network drivers receive a warning
when they use napi weight higher than NAPI_POLL_WEIGHT. This patch
reduces QETH_NAPI_WEIGHT from 128 to 64 (NAPI_POLL_WEIGHT).
Signed-off-by: NSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: NFrank Blaschka <blaschka@linux.vnet.ibm.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/s390/net/qeth_core.h

@@ -738,7 +738,7 @@ struct qeth_rx {
 	int qdio_err;
 };
 
-#define QETH_NAPI_WEIGHT 128
+#define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
 
 struct qeth_card {
 	struct list_head list;