Run account lock test case with root login

Change-Id: I0a1d50ad1bea9b90b2ee6dfb26f2c46356ced86a
Signed-off-by: Sandhya Somashekar <sansomas@in.ibm.com>
diff --git a/redfish/account_service/test_user_account.robot b/redfish/account_service/test_user_account.robot
index 427f4ec..4b03ba9 100644
--- a/redfish/account_service/test_user_account.robot
+++ b/redfish/account_service/test_user_account.robot
@@ -169,6 +169,10 @@
 
     Redfish Create User  admin_user  TestPwd123  Administrator   ${True}
 
+    Redfish.Logout
+
+    Redfish.Login
+
     ${payload}=  Create Dictionary  AccountLockoutThreshold=${account_lockout_threshold}
     ...  AccountLockoutDuration=${account_lockout_duration}
     Redfish.Patch  ${REDFISH_ACCOUNTS_SERVICE_URI}  body=${payload}