GUI: Fixed Verify_BMC_Reboot_Operation test case

Changes :-
    -  updated test with "Is BMC Operational" keyword.

Tested :
    -  Successfully ran this from gui/gui_test/operations_menu/test_reboot_bmc_sub_menu.robot

Change-Id: I95816e8dce952e84a9972382925a87bbe487a358
Signed-off-by: rramyasr-in <rramyasr@in.ibm.com>
diff --git a/gui/gui_test/operations_menu/test_reboot_bmc_sub_menu.robot b/gui/gui_test/operations_menu/test_reboot_bmc_sub_menu.robot
index 934596e..89d76a8 100644
--- a/gui/gui_test/operations_menu/test_reboot_bmc_sub_menu.robot
+++ b/gui/gui_test/operations_menu/test_reboot_bmc_sub_menu.robot
@@ -54,14 +54,13 @@
     [Tags]  Verify_BMC_Reboot_Operation
 
     Click Element  ${xpath_reboot_bmc_button}
-    Click Element  ${xpath_confirm_button}
+    Click Element At Coordinates  ${xpath_confirm_button}  0  0
 
     # Checks BMC gets into Unpingable state and later becomes Pingable.
     Wait Until Keyword Succeeds  1 min  5 sec  Is BMC Unpingable
     Wait For Host To Ping  ${OPENBMC_HOST}  1 min
 
-    # Checks BMC gets into ready state.
-    Wait Until Keyword Succeeds  5 min  10 sec  Is BMC Ready
+    Wait Until Keyword Succeeds  3 min  10 sec  Is BMC Operational
 
     Click Element  ${xpath_refresh_button}
     Wait Until Element Is Visible  ${xpath_reboot_bmc_button}  timeout=10