platform/chrome: chromeos_laptop: Use kmemdup_array

Let the kememdup_array() take care about multiplication and possible
overflows.

Signed-off-by: Yu Jiaoliang <yujiaoliang@vivo.com>
Link: https://lore.kernel.org/r/20240823024056.3031644-1-yujiaoliang@vivo.com


Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>