Replace deprecated keyword for IPMI tests

Changes:
- Exit For Loop If  is deprecated since
  Robot Framework version 5.*, use IF and BREAK instead

Tested:
- Checked using robot dry-run to make sure the
  syntax is not broken

Change-Id: Ic1af006f69fc8c440cb834c400449d88047d0637
Signed-off-by: Sridevi Ramesh <sridevra@in.ibm.com>
diff --git a/redfish/account_service/test_ipmi_redfish_user.robot b/redfish/account_service/test_ipmi_redfish_user.robot
index 9edc497..00176f8 100644
--- a/redfish/account_service/test_ipmi_redfish_user.robot
+++ b/redfish/account_service/test_ipmi_redfish_user.robot
@@ -333,7 +333,7 @@
         ${is_empty}=  Run Keyword And Return Status
         ...  Should Match Regexp  ${name_line}  ${empty_name_pattern}
 
-        Exit For Loop If  ${is_empty} == ${True}
+        IF  ${is_empty} == ${True}  BREAK
     END
     Run Keyword If  '${jj}' == '299'  Fail  msg=A free user ID could not be found.
     RETURN  ${random_userid}