soc: mediatek: mtk-svs: Change the thermal sensor device name

This driver tries to create a device link to the thermal sensor device:
change all instances of "lvts" and "thermal" to "thermal-sensor", as
that's what the devicetree node name must be.

Note for MT8183: As specified in a previous commit, this SoC never got
SVS probing, so this is not a breaking change and it does not require
fallback for older device trees.

Link: https://lore.kernel.org/r/20231121125044.78642-7-angelogioacchino.delregno@collabora.com


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