rt2x00: Rename dscape -> mac80211

The dscape stack was renamed to mac80211 a long time ago,
we are long overdue with fixing all comments to reflect this.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt73usb.h b/drivers/net/wireless/rt2x00/rt73usb.h
index 3f96756..06d6874 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.h
+++ b/drivers/net/wireless/rt2x00/rt73usb.h
@@ -1023,8 +1023,8 @@
 #define RXD_W5_RESERVED			FIELD32(0xffffffff)
 
 /*
- * Macro's for converting txpower from EEPROM to dscape value
- * and from dscape value to register value.
+ * Macro's for converting txpower from EEPROM to mac80211 value
+ * and from mac80211 value to register value.
  */
 #define MIN_TXPOWER	0
 #define MAX_TXPOWER	31