rt2x00: Reorganize queue callback functions

As part of the queue refactoring, change the queue callback
function names to have 3 different actions: start, kick & stop.

We can now also remove the STATE_RADIO_RX_ON/STATE_RADIO_RX_OFF
device_state flags, and replace the usage with using the
start_queue/stop_queue callback functions.
This streamlines the RX queue handling to the
similar approach as all other queues.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index e72117f..b72f59b 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -567,7 +567,14 @@
 			     struct link_qual *qual);
 	void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
 			    struct link_qual *qual, const u32 count);
+
+	/*
+	 * Data queue handlers.
+	 */
 	void (*watchdog) (struct rt2x00_dev *rt2x00dev);
+	void (*start_queue) (struct data_queue *queue);
+	void (*kick_queue) (struct data_queue *queue);
+	void (*stop_queue) (struct data_queue *queue);
 
 	/*
 	 * TX control handlers
@@ -579,8 +586,6 @@
 	void (*write_beacon) (struct queue_entry *entry,
 			      struct txentry_desc *txdesc);
 	int (*get_tx_data_len) (struct queue_entry *entry);
-	void (*kick_tx_queue) (struct data_queue *queue);
-	void (*kill_tx_queue) (struct data_queue *queue);
 
 	/*
 	 * RX control handlers