UPSTREAM: arm64: dts: rockchip: Add the thermal data found on RK3368

UPSTREAM: arm64: dts: rockchip: Add the thermal data found on RK3368

This patchset add the thermal for RK3368 dts,
Since the two CPU clusters, with four CPU core for each cluster,
one cluster is optimized for high-performance(big cluster) and the othe
is optimized for low power(little cluster).

This patch adds the second order for thermal throttle, and the critical
temperature for thermal over-tempeature protection on Software.

Change-Id: I9491287695768530c557511097f79ad6188adf1b
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
(cherry picked from commit c68bb56efb25e2d326ae413e399cdb1b4528e173)