[Automation]Fixing Tagging error in test_bootpolicy.robot

Resolves openbmc/openbmc-test-automation#283

Change-Id: I0d43c65449fb62b2dbd22ffafddce75891ec3950
Signed-off-by: Sridevi Ramesh <sridevra@in.ibm.com>
diff --git a/tests/test_bootpolicy.robot b/tests/test_bootpolicy.robot
index 2f26d6f..93b5147 100644
--- a/tests/test_bootpolicy.robot
+++ b/tests/test_bootpolicy.robot
@@ -85,7 +85,7 @@
 Persist ONETIME Boot Policy After Reset
     [Documentation]   Verify ONETIME boot policy order does not change
     ...               on warm reset.
-    [Tags]  chassisboot   Persist_ONETIME Boot_Policy_After_Reset
+    [Tags]  chassisboot   Persist_ONETIME_Boot_Policy_After_Reset
 
     Initiate Power On