Force reboot BMC

Missed to add the keyword during implementation

Change-Id: I07b9aa09f7525b1d732e8d534444784f157b93e0
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/extended/standby_bmc.robot b/extended/standby_bmc.robot
index f872bf9..57a9f32 100644
--- a/extended/standby_bmc.robot
+++ b/extended/standby_bmc.robot
@@ -92,3 +92,12 @@
     ${currentPolicy}=  Read Attribute     ${HOST_SETTING}   power_policy
     Should Be Equal    ${currentPolicy}   ${policy}
 
+
+Trigger Warm Reset via Reboot
+    [Documentation]    Execute reboot command on the remote BMC and
+    ...                returns immediately. This keyword "Start Command"
+    ...                returns nothing and does not wait for the command
+    ...                execution to be finished.
+    Open Connection And Log In
+
+    Start Command   /sbin/reboot