Fix tags and minor typo errors

Change-Id: Ib5863e41b99e0941111ac3c7639868672275320c
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/extended/code_update/host_multi_code_update.robot b/extended/code_update/host_multi_code_update.robot
index 5366265..cb68a33 100644
--- a/extended/code_update/host_multi_code_update.robot
+++ b/extended/code_update/host_multi_code_update.robot
@@ -23,10 +23,10 @@
 
 *** Test Cases ***
 
-Host_Multi Code Update
+Host Multi Code Update
     [Documentation]  Do four code updates in a row. Update to N, N-1, N, and
     ...              then N+1.
-    [Tags]  Host_Mult_Code_Update
+    [Tags]  Host_Multi_Code_Update
     [Template]  Code Update And Power On Host
 
     # Image File Path