Set wsgi logger to use __name__

Although underneath this is the eventlet.wsgi.server server, Other
OpenStack projects, don't use that logger instead they use there own.

This will also mean the wsgi server will stop logging on just the
warning level.  We want wsgi server to at least log on info level
so it will log when a request is processed and what the return code is.

Change-Id: I96fd73b84b4550f85ad96030fea815376901813a

neutron/wsgi.py

@@ -199,9 +199,8 @@ class Server(object):
 
     def _run(self, application, socket):
         """Start a WSGI server in a new green thread."""
-        logger = logging.getLogger('eventlet.wsgi.server')
         eventlet.wsgi.server(socket, application, custom_pool=self.pool,
-                             log=logging.WritableLogger(logger))
+                             log=logging.WritableLogger(LOG))
 
 
 class Middleware(object):