Test system leds of Witherspoon system.

This change includes:
   - Added test cases to turn on/off power and fault LEDs.
   - Added NA system LED test cases in skip lists.

Resolves openbmc/openbmc-test-automation#529

Change-Id: I8bc8e945d9cb76bd6495775110517c2a49ab8803
Signed-off-by: Rahul Maheshwari <rahulmaheshwari@in.ibm.com>
diff --git a/test_lists/skip_test_witherspoon b/test_lists/skip_test_witherspoon
index 7e5199b..b897325 100644
--- a/test_lists/skip_test_witherspoon
+++ b/test_lists/skip_test_witherspoon
@@ -58,3 +58,7 @@
 -e Test_Restore_Policy_RESTORE_LAST_STATE_With_Host_Running
 #https://github.com/openbmc/openbmc/issues/1571
 -e Verify_Host_Quiesce_State_Without_Auto_Reboot
+# System LED test cases which are NA for Witherspoon system.
+-e Test_Heartbeat_LED_And_Verify_Via_REST
+-e Test_Beep_LED_And_Verify_Via_REST
+-e Test_Identify_LED_And_Verify_Via_REST