[ARM] 5544/1: Trust PrimeCell resource sizes

I found the PrimeCell/AMBA Bus drivers distrusting the resource
passed in as part of the struct amba_device abstraction. This
patch removes all hard coded resource sizes found in the PrimeCell
drivers and move the responsibility of this definition back to
the platform/board device definition, which already exist and
appear to be correct for all in-tree users of these drivers.
We do this using the resource_size() inline function which was
also replicated in the only driver using the resource size, so
that has been changed too. The KMI_SIZE was left in kmi.h in case
someone likes it. Test-compiled against Versatile and Integrator
defconfigs, seems to work but I don't posess these boards and
cannot test them.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/input/serio/ambakmi.c b/drivers/input/serio/ambakmi.c
index a28c06d..89b3941 100644
--- a/drivers/input/serio/ambakmi.c
+++ b/drivers/input/serio/ambakmi.c
@@ -135,7 +135,7 @@
 	io->dev.parent	= &dev->dev;
 
 	kmi->io 	= io;
-	kmi->base	= ioremap(dev->res.start, KMI_SIZE);
+	kmi->base	= ioremap(dev->res.start, resource_size(&dev->res));
 	if (!kmi->base) {
 		ret = -ENOMEM;
 		goto out;