make_metadata.py: Include optimize_upip plugin into setup.py generated.

Author: pfalcon

make_metadata.py

@@ -12,7 +12,8 @@
 # module instead of system's.
 sys.path.pop(0)
 from setuptools import setup
-
+sys.path.append("..")
+import optimize_upip
 
 setup(name='micropython-%(dist_name)s',
       version='%(version)s',
@@ -24,6 +25,7 @@
       maintainer=%(maintainer)r,
       maintainer_email='[email protected]',
       license=%(license)r,
+      cmdclass={'optimize_upip': optimize_upip.OptimizeUpip},
       %(_what_)s=[%(modules)s]%(_inst_req_)s)
 """