rt2x00: Implement get_survey callback for rt2800

Implement the get_survey callback to allow user space to read statistics
about the current channel condition.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
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/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index b989b0d..f5abcc6 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -944,6 +944,7 @@
 	.rfkill_poll		= rt2x00mac_rfkill_poll,
 	.ampdu_action		= rt2800_ampdu_action,
 	.flush			= rt2x00mac_flush,
+	.get_survey		= rt2800_get_survey,
 };
 
 static const struct rt2800_ops rt2800pci_rt2800_ops = {