FWTS: skip strange opal-prd.service problems

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

Author: stewartsmith

testcases/FWTS.py

@@ -89,6 +89,8 @@ def runTest(self):
             if self.IS_FSP_SYSTEM and re.match('Property of "(board-info|part-number|serial-number|vendor|ibm,slot-location-code)" for "/sys/firmware/devicetree/base/xscom@.*" was not able to be retrieved. Check the installation for the CPU device config for missing nodes in the device tree if you expect CPU devices', log_text):
                 self.skipTest("FWTS assumes some nodes present on FSP systems which aren't")
 
+            if re.match('Attempt was made to stop the opal-prd.service but was not successful', log_text):
+                self.skipTest("FWTS bug: prd did actually stop, and there's something strange with FWTS")
         self.assertEqual(self.SUBTEST_RESULT.get('failure_label'), 'None', self.SUBTEST_RESULT)
 
 class FWTS(unittest.TestSuite):