Fix BMC reboot and changes using smart power off facility

Change-Id: I63ed8973a8cdaf13b53d4316d7021025d8650fdb
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/tests/test_error_log.robot b/tests/test_error_log.robot
index dfabfc3..701a5c1 100644
--- a/tests/test_error_log.robot
+++ b/tests/test_error_log.robot
@@ -26,9 +26,9 @@
     # 3. Reboot BMC.
     # 4. Check if eror log exists.
 
-    REST Power Off
+    Smart Power Off
     Delete Error Logs And Verify
-    OBMC Reboot (off)
+    OBMC Reboot (off)  stack_mode=normal
     Error Logs Should Not Exist