x86 platform drivers: add POWER_SUPPLY to selected drivers for Dell

The Kconfig loop detection goes crazy without this.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 598d5b8..7f43cf8 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -83,8 +83,8 @@
 	depends on EXPERIMENTAL
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on RFKILL || RFKILL = n
-	depends on POWER_SUPPLY
 	depends on SERIO_I8042
+	select POWER_SUPPLY
 	select LEDS_CLASS
 	select NEW_LEDS
 	default n