Disable Mutex Attribute Test Cases for now

We have been seeing random fails in our CI , there is a story that
is looking into this. To avoid useless CI fails we will disable this
for now.

Change-Id: I19cb4f9ff0dffe0ede6d5d6970608f6c8e5b8067
RTC: 204720
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/72916
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Reviewed-by: Matthew Raybuck <matthew.raybuck@ibm.com>
Reviewed-by: Matt Derksen <mderkse1@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>

src/usr/targeting/test/testtargeting.H

@@ -154,7 +154,8 @@ class TargetingTestSuite : public CxxTest::TestSuite
     /**
      *  @brief Test Hostboot specific mutex attribute support
      */
-    void testHbRecursiveMutexAttr()
+    // TODO RTC: 204720 when mutex issues are resolved reable this
+    void _testHbRecursiveMutexAttr()
     {
         TS_TRACE(ENTER_MRK "testHbRecursiveMutexAttr" );
 
@@ -270,7 +271,9 @@ class TargetingTestSuite : public CxxTest::TestSuite
     /**
      *  @brief Test Hostboot specific mutex attribute support
      */
-    void testHbMutexAttr()
+
+    // TODO RTC: 204720 when mutex issues are resolved reable this
+    void _testHbMutexAttr()
     {
         TS_TRACE(ENTER_MRK "testHbMutexAttr" );