openpower: 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: Id4a4131fec754fb106f47b4a0598715f94fd098d
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/openpower/vpd/test_vpd_tool.robot b/openpower/vpd/test_vpd_tool.robot
index 0bda1db..9061802 100644
--- a/openpower/vpd/test_vpd_tool.robot
+++ b/openpower/vpd/test_vpd_tool.robot
@@ -7,6 +7,7 @@
 
 Test Teardown   FFDC On Test Case Fail
 
+Force Tags      VPD_Tool
 
 *** Variables ***