arm64: dts: amlogic: axg: move cpu cooling-cells to common dtsi

arm64: dts: amlogic: axg: move cpu cooling-cells to common dtsi

The CPU cooling-cells property should be located in the meson-axg common
dtsi, as it is required for all AXG-based boards with DVFS.

Signed-off-by: Dmitry Rokosov <ddrokosov@salutedevices.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Viacheslav Bocharov <adeep@lexina.in>
Link: https://lore.kernel.org/r/20240209212816.11187-2-ddrokosov@salutedevices.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>