arm64: dts: mediatek: mt8183-kukui: align thermal node names with bindings

arm64: dts: mediatek: mt8183-kukui: align thermal node names with bindings

Bindings expect thermal zones node name to follow certain pattern.
This fixes dtbs_check warning:

  mt8183-kukui-jacuzzi-burnet.dtb: thermal-zones: 'tboard1', 'tboard2'
    do not match any of the regexes: '^[a-zA-Z][a-zA-Z0-9\\-]{1,10}-thermal$', 'pinctrl-[0-9]+'

Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241209112920.70060-1-krzysztof.kozlowski@linaro.org
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>