Fix AES Power restore policy setting

Resolves  openbmc/openbmc-test-automation#869

Change-Id: I83669887fe129a79759a5a3d2fbd0e4a3348f924
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/extended/standby_bmc.robot b/extended/standby_bmc.robot
index 9c0c9eb..82c2ece 100644
--- a/extended/standby_bmc.robot
+++ b/extended/standby_bmc.robot
@@ -52,7 +52,7 @@
 
     Prune Journal Log
 
-    Run Keyword And Ignore Error  Update Policy Setting  RESTORE_LAST_STATE
+    Run Keyword And Ignore Error  Set BMC Power Policy  ${RESTORE_LAST_STATE}
 
     Run Keyword If  '${MAC_ADDRESS}' != '${EMPTY}'
     ...  Check And Reset MAC