iwlwifi: move debug_level to sysfs/bus/pci/devices

This patch ports the debug_level from sysfs/bus/pci/drivers/iwl4965
to /sys/class/net/wlanX/device/debug_level

Signed-off-by: Ester Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig
index cc00069..193e48f 100644
--- a/drivers/net/wireless/iwlwifi/Kconfig
+++ b/drivers/net/wireless/iwlwifi/Kconfig
@@ -97,13 +97,13 @@
 	  control which debug output is sent to the kernel log by setting the
 	  value in
 
-	          /sys/bus/pci/drivers/${DRIVER}/debug_level
+		/sys/class/net/wlan0/device/debug_level
 
 	  This entry will only exist if this option is enabled.
 
 	  To set a value, simply echo an 8-byte hex value to the same file:
 
-		  % echo 0x43fff > /sys/bus/pci/drivers/${DRIVER}/debug_level
+		  % echo 0x43fff > /sys/class/net/wlan0/device/debug_level
 
 	  You can find the list of debug mask values in:
 		  drivers/net/wireless/iwlwifi/iwl-4965-debug.h