[ARM] S3C24XX: Documentation: Update GPIO status

Update the status of the S3C24XX GPIO now we have
moved to supporting GPIOLIB

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/Documentation/arm/Samsung-S3C24XX/Overview.txt b/Documentation/arm/Samsung-S3C24XX/Overview.txt
index c5429f5..cff6227 100644
--- a/Documentation/arm/Samsung-S3C24XX/Overview.txt
+++ b/Documentation/arm/Samsung-S3C24XX/Overview.txt
@@ -206,6 +206,9 @@
   The core contains support for manipulating the GPIO, see the
   documentation in GPIO.txt in the same directory as this file.
 
+  Newer kernels carry GPIOLIB, and support is being moved towards
+  this with some of the older support in line to be removed.
+
 
 Clock Management
 ----------------