Car docs: add a make-specific init function (#26565)

* add a hook function for makes to implement custom docs logic

* don't need this

* use the pre-defined list for honda's harnesses

* one line 😎

* Update selfdrive/car/docs_definitions.py

* i didn't know you didn't need a pass!

* don't change docs order
old-commit-hash: 1367f84425b5fbdb3ecf8452b134b641998e404a

selfdrive/car/docs.py

@@ -40,6 +40,7 @@ def get_all_car_info() -> List[CarInfo]:
 
     for _car_info in car_info:
       if not hasattr(_car_info, "row"):
+        _car_info.init_make(CP)
         _car_info.init(CP, footnotes)
       all_car_info.append(_car_info)