ARM: dts: amlogic: meson8: fix soc thermal-zone node name

ARM: dts: amlogic: meson8: fix soc thermal-zone node name

Use proper name for the soc thermal, fixing:
thermal-zones: 'soc' does not match any of the regexes: '^[a-zA-Z][a-zA-Z0-9\\-]{1,10}-thermal$', 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/thermal/thermal-zones.yaml#

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20240916-topic-amlogic-arm32-upstream-bindings-fixes-v2-2-0b20ed4f0571@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>