[ARM] 3/4: Remove asm/hardware.h from Versatile and Integrator io.h

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index 1ff629c..938d185 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -50,6 +50,7 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/sizes.h>
 #include <asm/hardware/amba.h>
 #include <asm/hardware/clock.h>
 #include <asm/hardware/amba_serial.h>