Make python2 use our libffi library in case that is present in our requirements
Make python2 use our libffi library in case that is present in our requirements

This is only necessary for python2 because in python3 the configure option that we use in python2 has been removed

kronenpj/python-for-android,germn/python-for-android,germn/python-for-android,kronenpj/python-for-android,germn/python-for-android,PKRoma/python-for-android,rnixx/python-for-android,kivy/python-for-android,germn/python-for-android,PKRoma/python-for-android,rnixx/python-for-android,rnixx/python-for-android,PKRoma/python-for-android,kronenpj/python-for-android,kivy/python-for-android,kronenpj/python-for-android,kivy/python-for-android,germn/python-for-android,germn/python-for-android,rnixx/python-for-android,rnixx/python-for-android,rnixx/python-for-android,kivy/python-for-android,kivy/python-for-android,kronenpj/python-for-android,PKRoma/python-for-android,PKRoma/python-for-android