power: max14577: Remove SYSFS dependency from Kconfig

This is only a small clean-up. The driver can be built without SYSFS
as there exist stubs for used functions.
Signed-off-by: NKarol Wrona <k.wrona@samsung.com>
Reviewed-by: NKrzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: NSebastian Reichel <sre@kernel.org>

drivers/power/Kconfig

@@ -327,7 +327,6 @@ config CHARGER_MANAGER
 config CHARGER_MAX14577
 	tristate "Maxim MAX14577/77836 battery charger driver"
 	depends on MFD_MAX14577
-	depends on SYSFS
 	help
 	  Say Y to enable support for the battery charger control sysfs and
 	  platform data of MAX14577/77836 MUICs.