Avoid any conflich with functest's elements

Change-Id: Id820eeef64236d3af2583a4a4a52e1c65b06be5a
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

diff --git a/elements/functest/install.d/16-functest b/elements/functest/install.d/16-functest-kubernetes
similarity index 100%
rename from elements/functest/install.d/16-functest
rename to elements/functest/install.d/16-functest-kubernetes