After run DeviceTreeWarnings, it shows "Warnings/Errors in Device Tree:\n{}", which causes the result FAILED.

[Oracle-Chen]

【Test result】After run DeviceTreeWarnings in either OS mode or console mode, it all shows error message which causes the result FAILED.

The error logs are like below:
Traceback (most recent call last):File "/home/ooo/Pnor_test/op-test/testcases/DeviceTreeWarnings.py", line 73, in runTest"Warnings/Errors in Device Tree:\n{}".format(msg))AssertionError: False is not true : Warnings/Errors in Device Tree:

Ran 1 test in 25.013s
FAILED (failures=1)

【Expect result】After run DeviceTreeWarnings, it should show OK.
[Test Steps]
Connect to LCB and input below codes to run the classes of DeviceTreeWarnings:

【Test 1. Run the class - " Skiroot "】
./op-test -c mihawk.conf --run testcases.DeviceTreeWarnings.Skiroot

【Test 2. Run the class - " Host "】
./op-test -c mihawk.conf --run testcases.DeviceTreeWarnings.Host

[FW configuration]
BMC: op940.00.mih-1-0-gb27c6fb
PNOR: OP9-v2.4-4.31-prod
OS: Red Hat 7.6 (4.14.0-115.13.1.el7a.ppc64le)

[HW configuration]
CPU DD2.3 20core 2
Micron (MTA72ASS8G72PSZ-2S6G1) 64G32
Seagate Jaguar 400GB *1
9300-8i *1 (slot10)
9305-16i *1 (slot5)
EDR 100Gb IB CONNECTX-5 *1 (slot6)
100Gb ROCE EN CONNECTX-5 *1 (slot1)
Nvidia T4 2 (slot 4,9)
PSU ACBEL 2000w2

1127_Error Log.log