libertas: rename packetfilter to mac_control

The CMD_MAC_CONTROL can be used for other things than just filtering
packets, e.g. to enable and disable WMM. This uses the same term mac_control
for the define, the function and the shadow value in struct lbs_private.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 84dde09..4fcf5e1 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -1286,7 +1286,7 @@
 	return ret;
 }
 
-int lbs_set_mac_packet_filter(struct lbs_private *priv)
+int lbs_set_mac_control(struct lbs_private *priv)
 {
 	int ret = 0;
 	struct cmd_ds_mac_control cmd;
@@ -1294,7 +1294,7 @@
 	lbs_deb_enter(LBS_DEB_CMD);
 
 	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
-	cmd.action = cpu_to_le16(priv->currentpacketfilter);
+	cmd.action = cpu_to_le16(priv->mac_control);
 	cmd.reserved = 0;
 
 	ret = lbs_cmd_with_response(priv, CMD_MAC_CONTROL, &cmd);