pinctrl: freescale: imx-scmi: Use kmemdup_array instead of kmemdup for multiple allocation

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

Signed-off-by: Shen Lichuan <shenlichuan@vivo.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/20240823105421.50017-1-shenlichuan@vivo.com


Signed-off-by: Linus Walleij <linus.walleij@linaro.org>