arm64: dts: mediatek: mt8195-demo: Enable vcn33_2 regulator
requested to merge mediatek/aiot/team-mtk-aiot-sw-ss2/linux-20211109:andy/i1200-enable-vnc33-reg-for-extaud into mtk-v5.10-i1200-dev
vcn33_2 regulator is used for external audio power supply.
To test SOC audio with external audio components through 40-pin header,
We will need this power supply, and so do customers who want to use it.
Signed-off-by: Andy.Hsieh Andy.Hsieh@mediatek.com