[ARM] S3C64XX: Add initial clock framework

Add the initial clocks definitions for the s3c6400
and s3c6410. Move the epll and ext clock from the
s3c2443 support into the common code.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-s3c64xx/Makefile b/arch/arm/plat-s3c64xx/Makefile
index 26b5714..15f717f 100644
--- a/arch/arm/plat-s3c64xx/Makefile
+++ b/arch/arm/plat-s3c64xx/Makefile
@@ -15,6 +15,7 @@
 obj-y				+= dev-uart.o
 obj-y				+= cpu.o
 obj-y				+= irq.o
+obj-y				+= clock.o
 
 # CPU support