Regression: doc: BaseSoC object has no attribute soc_interrupt_map

[xobs]

When running generate_docs() or generate_svd(), the following error is produced:

Traceback (most recent call last):
  File ".\foboot-bitstream.py", line 477, in <module>
    main()
  File ".\foboot-bitstream.py", line 452, in main
    lxsocdoc.generate_docs(soc, "build/documentation/", project_name="Fomu Bootloader", author="Sean Cross", from_scratch=False)
  File "D:\Code\Fomu\foboot\hw\deps\litex\litex\soc\doc\__init__.py", line 73, in generate_docs
    for csr, irq in sorted(soc.soc_interrupt_map.items()):
  File "D:\Code\Fomu\foboot\hw\deps\migen\migen\fhdl\module.py", line 136, in __getattr__
    raise AttributeError("'"+self.__class__.__name__+"' object has no attribute '"+name+"'")
AttributeError: 'BaseSoC' object has no attribute 'soc_interrupt_map'