dt-bindings: Enable dtc "interrupt_provider" warnings

All the warnings from the "interrupt_provider" dtc check are fixed now,
so enable the warning for the examples.

Link: https://lore.kernel.org/r/20241105213232.443192-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

Documentation/devicetree/bindings/Makefile

@@ -56,7 +56,6 @@ DT_DOCS = $(patsubst $(srctree)/%,%,$(shell $(find_all_cmd)))
 override DTC_FLAGS := \
 	-Wno-avoid_unnecessary_addr_size \
 	-Wno-graph_child_address \
-	-Wno-interrupt_provider \
 	-Wno-unique_unit_address \
 	-Wunique_unit_address_if_enabled
 

Documentation/devicetree/bindings/example-schema.yaml

@@ -262,4 +262,5 @@ examples:
         reg-names = "core", "aux";
         interrupts = <10>;
         interrupt-controller;
+        #interrupt-cells = <2>;
     };