dt-bindings: i2c: nxp,pca9541: convert to DT schema

Convert the bindings for NXP PCA9541 I2C bus master selector to DT
schema.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Peter Rosin <peda@axentia.se>
Acked-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230731163833.319258-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Andi Shyti <andi.shyti@kernel.org>