[ARM] Move asm/hardware/clock.h to linux/clk.h

This is needs to be visible to other architectures using the AMBA
bus and peripherals.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index 3358a14..0da4083 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -23,9 +23,9 @@
 #include <linux/list.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/clcd.h>
+#include <linux/clk.h>
 
 #include <asm/sizes.h>
-#include <asm/hardware/clock.h>
 
 #define to_clcd(info)	container_of(info, struct clcd_fb, fb)