[NET]: Move hardware header operations out of netdevice.

Since hardware header operations are part of the protocol class
not the device instance, make them into a separate object and
save memory.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index 7fa7ab0..b20bb01 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -3258,11 +3258,10 @@
 	INIT_LIST_HEAD(&local->bss_list);
 
 	hostap_setup_dev(dev, local, 1);
-	local->saved_eth_header_parse = dev->hard_header_parse;
 
 	dev->hard_start_xmit = hostap_master_start_xmit;
 	dev->type = ARPHRD_IEEE80211;
-	dev->hard_header_parse = hostap_80211_header_parse;
+	dev->header_ops = &hostap_80211_ops;
 
 	rtnl_lock();
 	ret = dev_alloc_name(dev, "wifi%d");