regulator: rename regulator-uv-survival-time-ms according to DT binding

regulator: rename regulator-uv-survival-time-ms according to DT binding

The regulator bindings don't document regulator-uv-survival-time-ms, but
the more descriptive regulator-uv-less-critical-window-ms instead.

Looking back at v3[1] and v4[2] of the series adding the support,
the property was indeed renamed between these patch series, but
unfortunately the rename only made it into the DT bindings with the
driver code still using the old name.

Let's therefore rename the property in the driver code to follow suit.
This will break backwards compatibility, but there are no upstream
device trees using the property and we never documented the old name
of the property anyway. ¯\_(ツ)_/¯"

[1]: https://lore.kernel.org/all/20231025084614.3092295-7-o.rempel@pengutronix.de/
[2]: https://lore.kernel.org/all/20231026144824.4065145-5-o.rempel@pengutronix.de/

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://patch.msgid.link/20241218-regulator-uv-survival-time-ms-rename-v1-1-6cac9c3c75da@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>