Redfish update test suite Force tags as per standard

Changes:
   - Update Tags names for the test suite

Note: Refer CONTRIBUTING.md for under Tags section
      documentation.

Tested:
   - NA

Change-Id: Ice5fa1a185876774d9e9bce4ff53f834b2a1f652
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/test_lists/witherspoon/regression_bucket_master b/test_lists/witherspoon/regression_bucket_master
index a5a463b..ede2fb5 100644
--- a/test_lists/witherspoon/regression_bucket_master
+++ b/test_lists/witherspoon/regression_bucket_master
@@ -52,7 +52,7 @@
 --include Verify_operator_User_Privilege
 --include Verify_User_User_Privilege
 # Certificate
---include Certificate_Test
+--include Certificate
 # Network test cases(non-disruptive)
 --include Get_IP_Address_And_Verify
 --include Get_Netmask_And_Verify