dt-bindings: w1: imx: Add an entry for the interrupts property

dt-bindings: w1: imx: Add an entry for the interrupts property

There is an interrupt line connected to the one-wire block on
the i.MX51 and i.MX53.

Add an entry for the interrupt property to avoid the following dt-schema
warning:

'interrupts' does not match any of the regexes: '^pinctrl-[0-9]+$'

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250819121344.2765940-1-festevam@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>