Add Verify_Redfish_BMC_PowerOn_With_OCC_State case

There is case to test the BMC to power on host,
Verify_Redfish_Host_PowerOn, in which it verifies that the OCC state is
active and `PowerConsumedWatts` exists on Redfish.

However, for systems without a total power sensor, e.g. Romulus and
Palmetto, there is no total_power sensor, and thus there is no
`PowerConsumedWatts` property on Redfish.

Add a case that only powers on the host and verify the OCC state, but
not check the `PowerConsumedWatts` property, so that it could be used to
test on systems without total power sensor.

Tested: Verify the case Verify_Redfish_BMC_PowerOn_With_OCC_State
        passed on Palmetto and Romulus.

Signed-off-by: Lei YU <mine260309@gmail.com>
Change-Id: If0ab344d4d3112c2a59d1386fe05128313296ad2
diff --git a/redfish/systems/test_power_operations.robot b/redfish/systems/test_power_operations.robot
index 7af7e87..6fc7c22 100644
--- a/redfish/systems/test_power_operations.robot
+++ b/redfish/systems/test_power_operations.robot
@@ -17,6 +17,16 @@
     Redfish Power Off
 
 
+Verify Redfish BMC PowerOn With OCC State
+    [Documentation]  Verify Redfish host power on operation.
+    [Tags]  Verify_Redfish_BMC_PowerOn_With_OCC_State
+
+    Redfish Power On
+
+    # TODO: Replace OCC state check with redfish property when available.
+    Verify OCC State
+
+
 Verify Redfish BMC PowerOn
     [Documentation]  Verify Redfish host power on operation.
     [Tags]  Verify_Redfish_Host_PowerOn