Added test case to verify unsupported cipher list in regression bucket.

Change-Id: I37e75906956b679e959e3eb3db2054a22519a9c3
Signed-off-by: Rahul Maheshwari <rahulmaheshwari@in.ibm.com>
diff --git a/test_lists/witherspoon/regression_bucket b/test_lists/witherspoon/regression_bucket
index cb0a1f3..a24d54a 100644
--- a/test_lists/witherspoon/regression_bucket
+++ b/test_lists/witherspoon/regression_bucket
@@ -21,6 +21,7 @@
 -i Verify_IPMI_SEL_Version
 -i Verify_Empty_SEL
 -i Verify_Supported_Cipher_List
+-i Verify_Unsupported_Cipher_List
 -i Set_Asset_Tag_With_Valid_String_Length
 -i Verify_Get_And_Set_Management_Controller_ID_String
 -i Test_Management_Controller_ID_String_Status_via_IPMI