thermal/drivers/mediatek/lvts_thermal: Add lvts commands and their sizes to driver data

Add LVTS commands and their sizes to driver data in preparation for
adding different commands.

Signed-off-by: Mason Chang <mason-cw.chang@mediatek.com>
Link: https://lore.kernel.org/r/20250526102659.30225-3-mason-cw.chang@mediatek.com


Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>