[ARM] S3C64XX: Add standard S3C64XX 24BPP LCD GPIO setup

Add a standard helper to configure the LCD output pins for a 24BPP
display with VSYNC/HSYNC/VDEN.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-s3c64xx/Kconfig b/arch/arm/plat-s3c64xx/Kconfig
index 9037eb4..203dd73 100644
--- a/arch/arm/plat-s3c64xx/Kconfig
+++ b/arch/arm/plat-s3c64xx/Kconfig
@@ -53,4 +53,9 @@
 	help
 	  Common setup code for i2c bus 1.
 
+config S3C64XX_SETUP_FB_24BPP
+	bool
+	help
+	  Common setup code for S3C64XX with an 24bpp RGB display helper.
+
 endif