Update power policy from RESTORE_LAST_STATE to ALWAYS_POWER_OFF

ALWAYS_POWER_OFF is the current default policy.

Resolves  openbmc/openbmc-test-automation#1162

Change-Id: I7978afd38c46fb365d7c90cd6d276249cb576cc7
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/extended/standby_bmc.robot b/extended/standby_bmc.robot
index 988b6d9..9a5bdb9 100644
--- a/extended/standby_bmc.robot
+++ b/extended/standby_bmc.robot
@@ -7,7 +7,7 @@
 ...                  - Power state is 0 (off)
 ...                  - BMC state is "Ready"
 ...                  - HOST state is "Off"
-...                  - Boot policy is "RESTORE_LAST_STATE"
+...                  - Boot policy is "ALWAYS_POWER_OFF"
 ...               Power cycle system via PDU if specified
 ...               Prune archived journal logs
 
@@ -53,7 +53,7 @@
 
     Prune Journal Log
 
-    Run Keyword And Ignore Error  Set BMC Power Policy  ${RESTORE_LAST_STATE}
+    Run Keyword And Ignore Error  Set BMC Power Policy  ${ALWAYS_POWER_OFF}
 
     # TODO: Enable MAC AES check latter.
     # Reference : openbmc/openbmc-test-automation#998