This ensures that an array is indexed by the appropriate type. Indexing
a mouse array with a joystick index is undefined behavior, and with this
change, such undefined behavior is now a compilation error.
Special macros are used to pass information to
`generate-kconfig-udlr.py`. Provide default definitions for these
macros in `kconfig.ui-table.cpp`, and override them in the one build
where they need to be special. This enables `kconfig.ui-table.cpp` to
build cleanly when invoked from the command line in the compilation
database.
