thermal/drivers/rockchip: Rename rk_tsadcv3_tshut_mode

The "v" version specifier here refers to the hardware IP revision.
Mainline deviated from downstream here by calling the v4 revision v3 as
it didn't support the v3 hardware revision at all.

This creates needless confusion, so rename it to rk_tsadcv4_tshut_mode
to be consistent with what the hardware wants to be called.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20250610-rk3576-tsadc-upstream-v6-1-b6e9efbf1015@collabora.com


Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>