backlight: Remove bogus SYSFS dependency

Remove a bogus SYSFS dependency from the backlight class
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>

drivers/video/Kconfig

@@ -4,9 +4,7 @@
 
 menu "Graphics support"
 
-if SYSFS
-	source "drivers/video/backlight/Kconfig"
-endif
+source "drivers/video/backlight/Kconfig"
 
 config FB
 	tristate "Support for frame buffer devices"

drivers/video/Makefile

@@ -12,7 +12,7 @@ fb-objs                           := $(fb-y)
 
 obj-$(CONFIG_VT)		  += console/
 obj-$(CONFIG_LOGO)		  += logo/
-obj-$(CONFIG_SYSFS)		  += backlight/
+obj-y				  += backlight/
 
 obj-$(CONFIG_FB_CFB_FILLRECT)  += cfbfillrect.o
 obj-$(CONFIG_FB_CFB_COPYAREA)  += cfbcopyarea.o