configs: Fix AbstractGeneratorCore connect_interrupt sig

`interrupt_requestor` and `interrupt_responce` are not manditory, they
should be defaulted to None. Without this errors occur when attempting
to call `connect_interrupt`.

Change-Id: I9401132df681b9a19eede8808a9a68d435cc5bbe
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/49610
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>

components_library/processors/abstract_generator_core.py

@@ -31,6 +31,8 @@ from ..utils.override import overrides
 from .cpu_types import CPUTypes
 from .abstract_core import AbstractCore
 
+from typing import Optional
+
 
 class AbstractGeneratorCore(AbstractCore):
     """The abstract generator core
@@ -82,7 +84,9 @@ class AbstractGeneratorCore(AbstractCore):
 
     @overrides(AbstractCore)
     def connect_interrupt(
-        self, interrupt_requestor: Port, interrupt_responce: Port
+        self,
+        interrupt_requestor: Optional[Port] = None,
+        interrupt_responce: Optional[Port] = None,
     ) -> None:
         """
         Since generator cores are not used in full system mode, no need to