arm64: dts: mediatek: mt8395-nio-12l: Define RSEL in microamperes

The paris pinctrl driver supports specifying the RSEL drive strength
in microamperes as well as internal bits definitions: choose to specify
those in uA to avoid using hardware specific values in device trees.

Link: https://lore.kernel.org/r/20240409114211.310462-4-angelogioacchino.delregno@collabora.com


Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>