[ARM] S3C: Add new FB device definition

Add a device definition for the new S3C framebuffer
driver.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-s3c/Kconfig b/arch/arm/plat-s3c/Kconfig
index d7a6e48..e80a328 100644
--- a/arch/arm/plat-s3c/Kconfig
+++ b/arch/arm/plat-s3c/Kconfig
@@ -166,3 +166,9 @@
 	depends on PLAT_S3C
 	help
 	  Compile in platform device definitions for I2C channel 1
+
+config S3C_DEV_FB
+	bool
+	depends on PLAT_S3C
+	help
+	  Compile in platform device definition for framebuffer