mv643xx_eth: require contiguous receive and transmit queue numbering

Simplify receive and transmit queue handling by requiring the set
of queue numbers to be contiguous starting from zero.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h
index 1207857..eb78b00 100644
--- a/include/linux/mv643xx_eth.h
+++ b/include/linux/mv643xx_eth.h
@@ -49,10 +49,10 @@
 	int			duplex;
 
 	/*
-	 * Which RX/TX queues to use.
+	 * How many RX/TX queues to use.
 	 */
-	int			rx_queue_mask;
-	int			tx_queue_mask;
+	int			rx_queue_count;
+	int			tx_queue_count;
 
 	/*
 	 * Override default RX/TX queue sizes if nonzero.