dt-bindings: rtc: trivial-rtc: add dallas,m41t00

Add compatible string dallas,m41t00 for dallas m41t00 RTC.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250827193356.78368-1-Frank.Li@nxp.com


Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>