CI failing for autest-9.1.x for schedule.test.py

[bneradt]

 Test: schedule: Exception
    File: schedule.test.py
    Directory: /var/jenkins/workspace/autest-9.1.x/src/tests/gold_tests/cont_schedule
     Reason: Traceback (most recent call last):
       File "/usr/local/lib/python3.6/site-packages/autest/core/runtesttask.py", line 34, in __call__
         tl = self.__logic.Run(self.__test)
       File "/usr/local/lib/python3.6/site-packages/autest/runlogic/runlogic.py", line 18, in Run
         if not tmp.Start(obj):
       File "/usr/local/lib/python3.6/site-packages/autest/runlogic/test.py", line 90, in Start
         loadTest(self.__test)
       File "/usr/local/lib/python3.6/site-packages/autest/core/test.py", line 292, in loadTest
         execFile(fileName, locals, locals)
       File "/usr/local/lib/python3.6/site-packages/autest/common/execfile.py", line 15, in execFile
         exec (safeCompile(f.read(), fname), globals, locals)
       File "/var/jenkins/workspace/autest-9.1.x/src/tests/gold_tests/cont_schedule/schedule.test.py", line 41, in <module>
         Test.PreparePlugin(os.path.join(Test.Variables.AtsTestToolsDir, 'plugins', 'cont_schedule.cc'), ts)
     AttributeError: 'Test' object has no attribute 'PreparePlugin'

This test needs to be updated with the new Test.PrepareTestPlugin rather than the old Test.PreparePlugin.