pinctrl: cy8c95x0: Use 2-argument strscpy()

Use 2-argument strscpy(), which is not only shorter but also provides
an additional check that destination buffer is an array.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/20241110210040.18918-2-andy.shevchenko@gmail.com


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