pinctrl: mediatek: mt8195: enable driver on mtk platforms

Set the pinctrl driver as built-in by default if
ARM64 and ARCH_MEDIATEK are enabled.

Fixes: 6cf5e9ef ("pinctrl: add pinctrl driver on mt8195")
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Miles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220327160813.2978637-1-fparent@baylibre.com


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