net: make netpoll_rx return bool for !CONFIG_NETPOLL

"netpoll: Use 'bool' for netpoll_rx() return type." missed the case when
CONFIG_NETPOLL is disabled.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 413742c..791d510 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -122,7 +122,7 @@
 }
 
 #else
-static inline int netpoll_rx(struct sk_buff *skb)
+static inline bool netpoll_rx(struct sk_buff *skb)
 {
 	return 0;
 }