pinctrl: rza1: Reduce printed messages

Since this message is printed for each port, it creates a lot of output
during boot and would serve better only during debugging.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20191212135301.17915-1-chris.brandt@renesas.com


Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>