dt-bindings: iommu: Fix interrupt type in example

The CMDQV interrupt on Tegra264 is edge-triggered per the hardware
interrupt documentation, but the binding example describes it as
level-triggered. Correct the example to use IRQ_TYPE_EDGE_RISING so
that it does not propagate the wrong trigger type.

Fixes: 8a59954192 ("dt-bindings: iommu: Add NVIDIA Tegra CMDQV support")
Reported-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Ashish Mhetre <amhetre@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Nicolin Chen <nicolinc@nvidia.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Documentation/devicetree/bindings/iommu/nvidia,tegra264-cmdqv.yaml

@@ -38,5 +38,5 @@ examples:
     cmdqv@5200000 {
             compatible = "nvidia,tegra264-cmdqv";
             reg = <0x5200000 0x830000>;
-            interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+            interrupts = <GIC_SPI 19 IRQ_TYPE_EDGE_RISING>;
     };