Use ether_addr_equal() to compare whether two MAC addresses are equal

This was done with spatch using the following semantic patch and minor
manual edits to clean up coding style and avoid compiler warnings in
driver_wext.c:

@@
expression a,b;
@@
-	os_memcmp(a, b, ETH_ALEN) == 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	os_memcmp(a, b, ETH_ALEN) != 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!os_memcmp(a, b, ETH_ALEN)
+	ether_addr_equal(a, b)

Signed-off-by: Jouni Malinen <j@w1.fi>

wpa_supplicant/scan.c

@@ -2602,8 +2602,7 @@ int wpa_supplicant_filter_bssid_match(struct wpa_supplicant *wpa_s,
 		return 1;
 
 	for (i = 0; i < wpa_s->bssid_filter_count; i++) {
-		if (os_memcmp(wpa_s->bssid_filter + i * ETH_ALEN, bssid,
-			      ETH_ALEN) == 0)
+		if (ether_addr_equal(wpa_s->bssid_filter + i * ETH_ALEN, bssid))
 			return 1;
 	}