compal-laptop: uses hwmon interfaces, depends on HWMON

compal-laptop uses hwmon interfaces, so it should depend on HWMON.

compal-laptop.c:(.devinit.text+0x4071f): undefined reference to `hwmon_device_register'
compal-laptop.c:(.devexit.text+0x6ec0): undefined reference to `hwmon_device_unregister'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Roald Frederickx <roald.frederickx@gmail.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>

drivers/platform/x86/Kconfig

@@ -182,6 +182,7 @@ config COMPAL_LAPTOP
 	depends on ACPI
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on RFKILL
+	depends on HWMON
 	---help---
 	  This is a driver for laptops built by Compal: