python-ctypes: fix mediacontrol_new_from_instance invocation
python-ctypes: fix mediacontrol_new_from_instance invocation

metakermit/vlc-bindings-python,kermit666/vlc-bindings-python,oaubert/python-vlc,metakermit/vlc-bindings-python,pombreda/git.videolan.org-vlc-bindings-python,pombreda/git.videolan.org-vlc-bindings-python,geoffsalmon/vlc-python,kermit666/vlc-bindings-python,oaubert/python-vlc,geoffsalmon/vlc-python