CrOS: M54 ToT

Some CFM tests randomly fail during enrollment on buddy, rikku & guado waiting for oobe. We have 5 tests for CFM that run nightly where each tests enrolls the device into remora prior to testing other functionality. This issue does not happen across all tests that are run nightly but happens randomly for some tests on some devices. The following trace is observed on buddy, rikku & guado:

Traceback (most recent call last):
  File "/usr/local/autotest/client/common_lib/test.py", line 600, in _exec
    _call_test_function(self.execute, *p_args, **p_dargs)
  File "/usr/local/autotest/client/common_lib/test.py", line 804, in _call_test_function
    return func(*args, **dargs)
  File "/usr/local/autotest/client/common_lib/test.py", line 461, in execute
    dargs)
  File "/usr/local/autotest/client/common_lib/test.py", line 347, in _call_run_once_with_retry
    postprocess_profiled_run, args, dargs)
  File "/usr/local/autotest/client/common_lib/test.py", line 376, in _call_run_once
    self.run_once(*args, **dargs)
  File "/usr/local/autotest/server/site_tests/enterprise_CFM_Sanity/enterprise_CFM_Sanity.py", line 152, in run_once
    raise error.TestFail(str(e))
TestFail: RPC error: cfm.enroll_device
Traceback (most recent call last):
  File "./multimedia_xmlrpc_server.py", line 70, in _dispatch
    return func(*params)
  File "/usr/local/autotest/cros/multimedia/cfm_facade_native.py", line 39, in enroll_device
    self._resource.start_custom_chrome({"auto_login": False})
  File "/usr/local/autotest/cros/multimedia/facade_resource.py", line 57, in start_custom_chrome
    self._chrome = chrome.Chrome(**kwargs)
  File "/usr/local/autotest/common_lib/cros/chrome.py", line 189, in __init__
    self._browser = browser_to_create.Create(finder_options)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/cros_browser_finder.py", line 50, in Create
    self._credentials_path)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/cros_browser_with_oobe.py", line 14, in __init__
    backend, platform_backend, credentials_path)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/browser/browser.py", line 55, in __init__
    self._browser_backend.Start()
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/internal/backends/chrome/cros_browser_backend.py", line 132, in Start
    util.WaitFor(lambda: self.oobe_exists, 30)
  File "/usr/local/telemetry/src/third_party/catapult/telemetry/telemetry/core/util.py", line 94, in WaitFor
    (timeout, GetConditionString()))
TimeoutException: Timed out while waiting 30s for util.WaitFor(lambda: self.oobe_exists, 30).