Watchdog: Add Redfish Initiate Auto Reboot

Redfish Initiate Auto Reboot using busctl command.

- Patchset #1: Initial commit.
- Patchset #2: Change per review comments.

Change-Id: I943c5086f87d133ac4b47e3bf5ade7c5849053f2
Signed-off-by: Peter D  Phan <peterp@us.ibm.com>
diff --git a/extended/test_watchdog.robot b/extended/test_watchdog.robot
index c11db31..d800191 100644
--- a/extended/test_watchdog.robot
+++ b/extended/test_watchdog.robot
@@ -94,6 +94,7 @@
     ${resp}=  OpenBMC Get Request  ${HOST_WATCHDOG_URI}
     Should Be Equal As Strings  ${resp.status_code}  ${HTTP_NOT_FOUND}
 
+
 *** Keywords ***
 
 Suite Setup Execution
@@ -144,3 +145,4 @@
 
     ${resp}=  OpenBMC Get Request  ${WATCHDOG_URI}host0
     Should Be Equal As Strings  ${resp.status_code}  ${HTTP_OK}
+