Update buildcvs to use the correct tags for b_hd_kdmu.

build/buildcvs

@@ -303,7 +303,7 @@ case "$lustretag" in
 
     # Branches that have been updated to include
     # the libcfs split should be added here
-    HEAD|b_head_quota|b_hd_cfld|b_hd_changelog|b_hd_sptlrpc|HD_SPTLRPC_BASE|b_som)
+    HEAD|b_head_quota|b_hd_cfld|b_hd_changelog|b_hd_sptlrpc|HD_SPTLRPC_BASE|b_som|b_hd_kdmu)
         lnettag="HEAD"
         ldiskfstag="$ldiskfstag_head"
         libcfstag="HEAD"