i3c: master: dw-i3c: Fix missing reset assertion in remove() callback

i3c: master: dw-i3c: Fix missing reset assertion in remove() callback

The reset line acquired during probe is currently left deasserted when
the driver is unbound.

Switch to devm_reset_control_get_optional_exclusive_deasserted() to
ensure the reset is automatically re-asserted by the devres core when
the driver is removed.

Fixes: 62fe9d06f570 ("i3c: dw: Add power management support")
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260320-dw-i3c-v3-1-477040c2e3f5@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>