Fix testplan name

Change-Id: Id0a59c3902218e984a12859c41b2692ecf372128
Signed-off-by: Luis Gomez <ecelgp@gmail.com>

diff --git a/csit/testplans/openflowplugin-clustering-lithium-design.txt b/csit/testplans/openflowplugin-clustering-lithium-redesign.txt
similarity index 100%
rename from csit/testplans/openflowplugin-clustering-lithium-design.txt
rename to csit/testplans/openflowplugin-clustering-lithium-redesign.txt