[ARM] S3C64XX: Add S3C6400 SDHCI setup support

Add support for S3C6400 SDHCI channels 0 and 1, making
the GPIO code common to both S3C6400 and S3C6410.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig
index 0c8df97..4f7ffc7 100644
--- a/arch/arm/mach-s3c6410/Kconfig
+++ b/arch/arm/mach-s3c6410/Kconfig
@@ -16,6 +16,7 @@
 
 config S3C6410_SETUP_SDHCI
 	bool
+	select S3C64XX_SETUP_SDHCI_GPIO
 	help
 	  Internal helper functions for S3C6410 based SDHCI systems