acer-wmi: Unmark as 'experimental'

This driver has been around and used long enough that we can drop the
'experimental'.
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>

drivers/platform/x86/Kconfig

@@ -15,8 +15,7 @@ menuconfig X86_PLATFORM_DEVICES
 if X86_PLATFORM_DEVICES
 
 config ACER_WMI
-	tristate "Acer WMI Laptop Extras (EXPERIMENTAL)"
-	depends on EXPERIMENTAL
+	tristate "Acer WMI Laptop Extras"
 	depends on ACPI
 	depends on LEDS_CLASS
 	depends on NEW_LEDS