arm64: renesas: r8a7795: Use polling mode for thermal driver

The interrupt mode might take much CPU load while running in
rapid temperature changing environment, then cause impact to
performance of other processing.
Therefore, change default Thermal sensor driver mode to
Polling mode for now.

The polling value is selected following example value in
thermal DT Documentation.

Signed-off-by: Hien Dang <hien.dang.eb@rvc.renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
1 file changed