CT Fix for error logs test which are failing due to busctl command

Internal error command does not generate an unrecoverable error now.
Corrected the busctl command to generate unrecoverable error and set
"Create Test PEL Log" keyword to generate this error as default.

Change-Id: I2d3f2eb255e49cb127641f047864b5847ce1d291
Signed-off-by: Rahul Maheshwari <rahulmaheshwari@in.ibm.com>
diff --git a/lib/logging_utils.robot b/lib/logging_utils.robot
index 2d336fb..b6eee94 100644
--- a/lib/logging_utils.robot
+++ b/lib/logging_utils.robot
@@ -153,7 +153,7 @@
 
 Create Test PEL Log
     [Documentation]  Generate test PEL log.
-    [Arguments]  ${pel_type}=Internal Failure
+    [Arguments]  ${pel_type}=Unrecoverable Error
 
     # Description of argument(s):
     # pel_type      The PEL type (e.g. Internal Failure, FRU Callout, Procedural Callout).
@@ -178,6 +178,8 @@
     ...   BMC Execute Command  ${CMD_FRU_CALLOUT}
     ...  ELSE IF  '${pel_type}' == 'Procedure And Symbolic FRU Callout'
     ...   BMC Execute Command  ${CMD_PROCEDURAL_SYMBOLIC_FRU_CALLOUT}
+    ...  ELSE IF  '${pel_type}' == 'Unrecoverable Error'
+    ...   BMC Execute Command  ${CMD_UNRECOVERABLE_ERROR}
 
 
 Create Test Error Log