IPMI robot codes with latest directives

Changes:
   - Run KeyWord If is deprecated since Robot
     Framework version 5.*, use 'IF' instead

Tested:
   - Checked using robot dry-run to make sure the
     syntax is not broken
Change-Id: I8a52aeb2939104f2c94f294272d92c4a7692970e
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/ipmi/test_ipmi_chassis.robot b/ipmi/test_ipmi_chassis.robot
index dca1230..0a2b15d 100644
--- a/ipmi/test_ipmi_chassis.robot
+++ b/ipmi/test_ipmi_chassis.robot
@@ -237,6 +237,5 @@
     @{powertolist}=  Split String  ${power_status}   :
     ${status}=  Get From List  ${powertolist}  1
     # Chassis Power ON if status is off
-    Run Keyword If    '${status.strip()}' != 'on'
-    ...  Redfish Power On
+    IF  '${status.strip()}' != 'on'  Redfish Power On
     FFDC On Test Case Fail