IPMI: Fix for 'Test Power Reading Via IPMI With Host Booted'

Changes:
    - Updated the Redfish URI for power reading.

Tested:
    - Test_Power_Reading_Via_IPMI_With_Host_Booted.

Change-Id: I6c42a9047d8e436112ad0dfd049ada179bdd26c1
Signed-off-by: Nandish-Matti <nandish.matti@ibm.com>
diff --git a/ipmi/test_ipmi_sensor.robot b/ipmi/test_ipmi_sensor.robot
index ff39c2f..a4254c2 100644
--- a/ipmi/test_ipmi_sensor.robot
+++ b/ipmi/test_ipmi_sensor.robot
@@ -326,7 +326,7 @@
 
     ${ipmi_reading}=  Get IPMI Power Reading
     ${redfish_power_reading}=  redfish_utils.Get Attribute
-    ...  /redfish/v1/Chassis/chassis/Sensors/total_power  Reading
+    ...  /redfish/v1/Chassis/${CHASSIS_ID}/Sensors/power_total_power  Reading
 
     ${ipmi_redfish_power_diff}=
     ...  Evaluate  abs(${redfish_power_reading} - ${ipmi_reading['instantaneous_power_reading']})