Correct tags option position in ansible hook

I made a mistake with the argument ordering, these need to go
before the playbook name

Change-Id: If7d2dc9f9a09d1c9feb78c3a8cbb2980c3e647f4

hot/software-config/elements/heat-config-ansible/install.d/hook-ansible.py

@@ -78,8 +78,8 @@ def main(argv=sys.argv):
         '@%s' % vars_filename
     ]
     if tags:
-        cmd.insert(-1, '--tags')
-        cmd.insert(-1, tags)
+        cmd.insert(3, '--tags')
+        cmd.insert(4, tags)
     log.debug('Running %s' % (' '.join(cmd),))
     try:
         subproc = subprocess.Popen(cmd, stdout=subprocess.PIPE,

tests/software_config/test_hook_ansible.py

@@ -103,11 +103,12 @@ class HookAnsibleTest(common.RunScriptTest):
         expected_args = [
             self.fake_tool_path,
             '-i',
-            'localhost,',
-            ansible_playbook,
-            '--extra-vars']
+            'localhost,']
         if options:
             expected_args += options
+        expected_args += [
+            ansible_playbook,
+            '--extra-vars']
         expected_args.append('@%s' % vars_filename)
         self.assertEqual(expected_args, state['args'])