without this fix the following happens:
```
% python3 -m capstone
Traceback (most recent call last):
File "/usr/lib/python3.7/runpy.py", line 183, in _run_module_as_main
mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
File "/usr/lib/python3.7/runpy.py", line 142, in _get_module_details
return _get_module_details(pkg_main_name, error)
File "/usr/lib/python3.7/runpy.py", line 109, in _get_module_details
__import__(pkg_name)
File "/usr/lib/python3.7/site-packages/capstone/__init__.py", line 315, in <module>
raise ImportError("ERROR: fail to load the dynamic library.")
ImportError: ERROR: fail to load the dynamic library.
```
it also adds a -static subpkg
