dt-bindings: reset: add support for canaan,k230-rst

Introduces a reset controller driver for the Kendryte K230 SoC,
resposible for managing the reset functionality of the CPUs and
various sub-modules.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Chen Wang <unicorn_wang@outlook.com>
Signed-off-by: Junhui Liu <junhui.liu@pigmoral.tech>
Link: https://lore.kernel.org/r/20250613-k230-reset-v4-1-e5266d2be440@pigmoral.tech


Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>