replace "ugettext" method with "ugettext_lazy"

In the bug "1124276", ugettext" method was replaced with "ugettext_lazy".

I do the same thing to the code which is detected by "grep" commad.

Change-Id: I494538beb8f28d6ad4658e9d5e45dbde041d889c
Closes-Bug: #1226354

openstack_dashboard/dashboards/project/firewalls/tables.py

@@ -18,7 +18,7 @@
 import logging
 
 from django.core.urlresolvers import reverse  # noqa
-from django.utils.translation import ugettext as _  # noqa
+from django.utils.translation import ugettext_lazy as _  # noqa
 
 from horizon import tables
 

openstack_dashboard/dashboards/project/firewalls/tabs.py

@@ -15,7 +15,7 @@
 #
 # @author: KC Wang, Big Switch Networks
 
-from django.utils.translation import ugettext as _  # noqa
+from django.utils.translation import ugettext_lazy as _  # noqa
 
 from horizon import exceptions
 from horizon import tabs

openstack_dashboard/dashboards/project/firewalls/views.py

@@ -19,7 +19,7 @@ import logging
 import re
 
 from django.core.urlresolvers import reverse_lazy  # noqa
-from django.utils.translation import ugettext as _  # noqa
+from django.utils.translation import ugettext_lazy as _  # noqa
 
 from horizon import exceptions
 from horizon import forms

openstack_dashboard/dashboards/project/firewalls/workflows.py

@@ -17,7 +17,7 @@
 
 import logging
 
-from django.utils.translation import ugettext as _  # noqa
+from django.utils.translation import ugettext_lazy as _  # noqa
 
 from horizon import exceptions
 from horizon import forms

openstack_dashboard/dashboards/project/overview/views.py

@@ -21,7 +21,7 @@
 
 from django.template.defaultfilters import capfirst  # noqa
 from django.template.defaultfilters import floatformat  # noqa
-from django.utils.translation import ugettext as _  # noqa
+from django.utils.translation import ugettext_lazy as _  # noqa
 from django.views.generic import TemplateView  # noqa
 
 from openstack_dashboard import usage

openstack_dashboard/dashboards/router/nexus1000v/tabs.py

@@ -15,7 +15,7 @@
 # @author: Abishek Subramanian, Cisco Systems, Inc.
 # @author: Sergey Sudakovich,   Cisco Systems, Inc.
 
-from django.utils.translation import ugettext as _  # noqa
+from django.utils.translation import ugettext_lazy as _  # noqa
 
 from horizon import tabs