[ARM] 3076/1: S3C2410 - updated documentation for platfrom data init

Patch from Ben Dooks

Update the Documentation/arm/Samsung-S3C24XX to add
example platform data initialisation, and add the
linux-arm mailing list URL.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>