dt-bindings: thermal: mediatek: Fix thermal zone definitions for MT8188

Fix thermal zone names for consistency with the other SoCs:
- GPU0 must be used as the first GPU item.
- SOCx deal with audio DSP, video, and infra subsystems.

The naming must be fixed "atomically" so compilation does not break.
As a result, the change is made in the dt-bindings and in the LVTS
driver within a single commit, despite the checkpatch warning.

The definitions can be safely modified here because they are used only
in the LVTS driver, which is modified accordingly, and have not yet
been included in a released kernel.

Fixes: 78c88534 ("dt-bindings: thermal: mediatek: Add LVTS thermal controller definition for MT8188")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Julien Panis <jpanis@baylibre.com>
Link: https://lore.kernel.org/r/20240603-mtk-thermal-mt818x-dtsi-v7-2-8c8e3c7a3643@baylibre.com


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