thermal: Drop spaces before TABs

There is never a need to have a space before a TAB, but it hurts the
eyes of vim users.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/480478a53fd42621e97b2db36e181903cc0f53e3.1708001426.git.geert+renesas@glider.be