lm-sensors: update homepage link

The lm-sensors.org website is down, and won't be coming back anytime soon. Use
the suggested[1], far from adequate, alternative.

[1] https://github.com/groeck/lm-sensors/issues/3

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/lm-sensors/Config.in

@@ -6,7 +6,7 @@ config BR2_PACKAGE_LM_SENSORS
 	  temperature, voltage, and fan speed sensors. It
 	  works with most newer systems.
 
-	  http://www.lm-sensors.org/
+	  https://hwmon.wiki.kernel.org
 
 if BR2_PACKAGE_LM_SENSORS
 comment "lm-sensors tools"