pmdomain: mediatek: Add MT8188 buck isolation setting

pmdomain: mediatek: Add MT8188 buck isolation setting

Add buck isolation setting to ADSP_AO, CAM_VCORE and IMG_VCORE power
domains in MT8188 for proper buck isolation control in power domain
on/off.

Signed-off-by: Johnson Wang <johnson.wang@mediatek.com>
Signed-off-by: Fei Shao <fshao@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240329044142.3095193-1-fshao@chromium.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>