eeepc-laptop: add hwmon fan control

Adds an hwmon interface to control the fan.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 01b7deb..7a4869a 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -356,6 +356,7 @@
 	depends on X86
 	depends on ACPI
 	depends on BACKLIGHT_CLASS_DEVICE
+	depends on HWMON
 	depends on EXPERIMENTAL
 	---help---
 	  This driver supports the Fn-Fx keys on Eee PC laptops.