tc-testing: ife: fix wrong teardown command in test b7b8

fix failures in the 'teardown' stage of test b7b8, probably a leftover of
commit 7c5995b3 ("tc-testing: fixed copy-pasting error in ife tests")

Fixes: a56e6bcd ("tc-testing: updated ife test cases")
Signed-off-by: NDavide Caratti <dcaratti@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

tools/testing/selftests/tc-testing/tc-tests/actions/ife.json

@@ -568,7 +568,7 @@
         "matchPattern": "action order [0-9]*: ife encode action pass.*type 0xED3E.*use tcindex 65535.*index 1",
         "matchCount": "1",
         "teardown": [
-            "$TC actions flush action skbedit"
+            "$TC actions flush action ife"
         ]
     },
     {