dt-bindings: interrupt-controller: microchip,lan966x-oic: Clarify endpoint use

Reword the description, to make it clear that the LAN966x Outbound
Interrupt Controller is used only in PCI endpoint mode.

Signed-off-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]>
Acked-by: Herve Codina <[email protected]>
Link: https://lore.kernel.org/all/247b1185c93610100f3f8c9e0ab2c1506e53e1f4.1737383314.git.geert+renesas@glider.be

Author: geertu

Documentation/devicetree/bindings/interrupt-controller/microchip,lan966x-oic.yaml

@@ -14,9 +14,8 @@ allOf:
 
 description: |
   The Microchip LAN966x outband interrupt controller (OIC) maps the internal
-  interrupt sources of the LAN966x device to an external interrupt.
-  When the LAN966x device is used as a PCI device, the external interrupt is
-  routed to the PCI interrupt.
+  interrupt sources of the LAN966x device to a PCI interrupt when the LAN966x
+  device is used as a PCI device.
 
 properties:
   compatible: