arm64: dts: mt8173: fix cooling device range

When thermal reaches target temperature,it would be pinned to state 0
(max frequency and power).
Fix the throttling range to no limit.

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Link: https://lore.kernel.org/r/20200424082340.4127-1-michael.kao@mediatek.com


Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>