ARM: dts: microchip: split interrupts per cells

Each interrupt should be in its own cell.  This is much more readable.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230730111542.98238-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>