pinctrl: qcom: sc8180x: use kcalloc() instead of kzalloc()

Use devm_kcalloc() in sc8180x_pinctrl_add_tile_resources() to gain built-in
overflow protection, making memory allocation safer when calculating
allocation size compared to explicit multiplication.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/20250819143935.372084-4-rongqianfeng@vivo.com


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