ARM: s3c24xx: Remove printk for failed memory allocation in iotiming get

Omit an extra message for a memory allocation failure in
s3c2410_iotiming_get() and s3c2412_iotiming_get().

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>