dt-bindings: PCI: Add missing "#address-cells" to interrupt controllers
An interrupt-controller node which is the parent provider for
"interrupt-map" needs an "#address-cells" property. This fixes
"interrupt_map" warnings in new dtc.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/20250801200728.3252036-2-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>