Revert "[nrf fromtree] edtlib: fix default type for interrupts property"

This reverts commit f49b1fe.

Signed-off-by: Martí Bolívar <[email protected]>

Author: mbolivar-nordic

scripts/dts/edtlib.py

@@ -2357,7 +2357,7 @@ class _BindingLoader(Loader):
     "reg": "array",
     "reg-names": "string-array",
     "label": "string",
-    "interrupts": "array",
+    "interrupt": "array",
     "interrupts-extended": "compound",
     "interrupt-names": "string-array",
     "interrupt-controller": "boolean",