arm: dts: mediatek: mt8189: Add pinmux macro header file
Add the pinctrl header file on MediaTek mt8189. Signed-off-by: Cathy Xu <ot_cathy.xu@mediatek.com> Reviewed-by: Julien Stephan <jstephan@baylibre.com> Link: https://patch.msgid.link/20260323-mtk-mt8391-initial-support-v3-3-19dd92f4543f@baylibre.com Signed-off-by: David Lechner <dlechner@baylibre.com>
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