[PATCH] atyfb: Fix kconfig error

Fix the following compile error:

  MODPOST 327 modules
WARNING: "aty_st_lcd" [drivers/video/aty/atyfb.ko] undefined!
WARNING: "aty_ld_lcd" [drivers/video/aty/atyfb.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2
Signed-off-by: NAntonino Daplas <adaplas@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/video/aty/atyfb_base.c

@@ -131,7 +131,8 @@
 #define PRINTKI(fmt, args...)	printk(KERN_INFO "atyfb: " fmt, ## args)
 #define PRINTKE(fmt, args...)	 printk(KERN_ERR "atyfb: " fmt, ## args)
 
-#if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD)
+#if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || \
+defined (CONFIG_FB_ATY_GENERIC_LCD) || defined(CONFIG_FB_ATY_BACKLIGHT)
 static const u32 lt_lcd_regs[] = {
 	CONFIG_PANEL_LG,
 	LCD_GEN_CNTL_LG,