ath9k: add debug parameters for spectral scan

Export the various parameters to userspace.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index b2d6c18..342edc5 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -754,6 +754,7 @@
 	/* relay(fs) channel for spectral scan */
 	struct rchan *rfs_chan_spec_scan;
 	enum spectral_mode spectral_mode;
+	struct ath_spec_scan spec_config;
 	int scanning;
 
 #ifdef CONFIG_PM_SLEEP