[ARM] 3650/1: S3C2412: Update s3c2410_defconfig

Patch from Ben Dooks

Add SMDK2413 to the list of the machines being
built for ARCH_S3C2410, thus ensursing our all
machines build has an representitive of the
S3C2412/S3C2413 CPU series--

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