[][Add up-to-date upstream thermal driver]

[Description]
Add up-to-date upstream thermal driver which supports
thermal V1 and V2.
	- V1 : MT8173, MT8183, MT2701, MT2712
	- V2 : MT7622

[How-to]
The way to obtain current temperature.
	- cat /sys/class/thermal/thermal_zone0/temp

[Release-log]
N/A

Change-Id: Ia5705f833db94ddef2d7f958a25902deab42e353
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/4637709
1 file changed