dt-bindings: microsoft,vmbus: Add interrupt and DMA coherence properties

dt-bindings: microsoft,vmbus: Add interrupt and DMA coherence properties

To boot in the VTL mode, VMBus on arm64 needs interrupt description
which the binding documentation lacks. The transactions on the bus are
DMA coherent which is not mentioned as well.

Add the interrupt property and the DMA coherence property to the VMBus
binding. Update the example to match that. Fix typos.

Signed-off-by: Roman Kisel <romank@linux.microsoft.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250428210742.435282-8-romank@linux.microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <20250428210742.435282-8-romank@linux.microsoft.com>