HID: sony: fix build wrt. power_supply

Sony driver now makes use of power supply support. Make kernel
config aware of it.

Reported-by: fengguang.wu@intel.com
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

drivers/hid/Kconfig

@@ -612,6 +612,7 @@ config HID_SONY
 	depends on USB_HID
 	depends on NEW_LEDS
 	depends on LEDS_CLASS
+	select POWER_SUPPLY
 	---help---
 	Support for