staging: wlan-ng: Replace hard coded values with MACRO's

This patch replaces hard coded values with global definitions for the
Ethernet IEEE 802.3 interface defined in standard header file.
Signed-off-by: NHari Prasath Gujulan Elango <hgujulan@visteon.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wlan-ng/p80211conv.c

@@ -129,7 +129,7 @@ int skb_ether_to_p80211(wlandevice_t *wlandev, u32 ethconv,
 	} else {
 		/* step 1: classify ether frame, DIX or 802.3? */
 		proto = ntohs(e_hdr.type);
-		if (proto <= 1500) {
+		if (proto <= ETH_DATA_LEN) {
 			pr_debug("802.3 len: %d\n", skb->len);
 			/* codes <= 1500 reserved for 802.3 lengths */
 			/* it's 802.3, pass ether payload unchanged,  */
@@ -531,7 +531,7 @@ int p80211_stt_findproto(u16 proto)
 	   Need to do some testing to confirm.
 	 */
 
-	if (proto == 0x80f3)	/* APPLETALK */
+	if (proto == ETH_P_AARP)	/* APPLETALK */
 		return 1;
 
 	return 0;