Replace dict.iteritems() across modules in networking-cisco repo

[Saksham Varma]

pep8 runtests: commands[1] | flake8
2015-06-08 19:15:30.744 | /home/jenkins/workspace/gate-networking-cisco-pep8$ /home/jenkins/workspace/gate-networking-cisco-pep8/.tox/pep8/bin/flake8
2015-06-08 19:15:32.434 | ./networking_cisco/tests/unit/cisco/l3/test_l3_router_appliance_plugin.py:136:9: N327 Use six.iteritems() instead of dict.iteritems().
2015-06-08 19:15:32.434 | for resource, attrs in attributes.RESOURCE_ATTRIBUTE_MAP.iteritems():
2015-06-08 19:15:32.434 | ^
2015-06-08 19:15:32.434 | ./networking_cisco/plugins/cisco/db/l3/device_handling_db.py:484:13: N327 Use six.iteritems() instead of dict.iteritems().
2015-06-08 19:15:32.435 | for key, value in filters.iteritems():
2015-06-08 19:15:32.435 | ^
2015-06-08 19:15:32.619 | ./networking_cisco/plugins/ml2/drivers/cisco/ncs/driver.py:175:13: N327 Use six.iteritems() instead of dict.iteritems().
2015-06-08 19:15:32.619 | obj = dict((self.escape(k), self.escape_keys(v))
2015-06-08 19:15:32.620 | ^
2015-06-08 19:15:32.620 | ./networking_cisco/plugins/ml2/drivers/cisco/ucsm/ucsm_network_driver.py:469:9: N327 Use six.iteritems() instead of dict.iteritems().
2015-06-08 19:15:32.620 | for host_id, value in self.ucsm_host_dict.iteritems():
2015-06-08 19:15:32.620 | ^
2015-06-08 19:15:32.725 | ERROR: InvocationError: '/home/jenkins/workspace/gate-networking-cisco-pep8/.tox/pep8/bin/flake8'
2015-06-08 19:15:32.725 | ___________________________________ summary ____________________________________
2015-06-08 19:15:32.725 | ERROR: pep8: commands failed

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/189932
Committed: https://git.openstack.org/cgit/stackforge/networking-cisco/commit/?id=2814776d57e0e884e0ad8a0204b5bb49d6abd4c8
Submitter: Jenkins
Branch: master

commit 2814776d57e0e884e0ad8a0204b5bb49d6abd4c8
Author: Saksham Varma <email address hidden>
Date: Tue Jun 9 13:45:45 2015 -0700

    Fix more pep8 and py27 failures due to neutron core changes

    pep8 failed since dict.iteritems() is not Python3 compatible.
    This fix replaces these calls with six.iteritems(dict)

    py27 failed due to olso.config not allowing config files to
    end in .test, see https://review.openstack.org/189646

    Co-Authored-By: Henry Gessau <email address hidden>
    Closes-Bug: #1463560

    Change-Id: I5b408a6b99595e02c6188c752379e8b1a672ae42