HID: nvidia-shield: Select POWER_SUPPLY Kconfig option

Battery information reported by the driver depends on the power supply
subsystem. Select the required subsystem when the HID_NVIDIA_SHIELD Kconfig
option is enabled.

Fixes: 3ab196f ("HID: nvidia-shield: Add battery support for Thunderstrike")
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

Author: Binary-Eater

drivers/hid/Kconfig

@@ -800,6 +800,7 @@ config HID_NVIDIA_SHIELD
 	depends on USB_HID
 	depends on BT_HIDP
 	depends on LEDS_CLASS
+	select POWER_SUPPLY
 	help
 	  Support for NVIDIA SHIELD accessories.