xcursor-transparent-theme: use a version glob in the selftest bbappend

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta-selftest/recipes-test/xcursor-transparent-theme/xcursor-transparent-theme_0.1.1.bbappend b/meta-selftest/recipes-test/xcursor-transparent-theme/xcursor-transparent-theme_%.bbappend
similarity index 100%
rename from meta-selftest/recipes-test/xcursor-transparent-theme/xcursor-transparent-theme_0.1.1.bbappend
rename to meta-selftest/recipes-test/xcursor-transparent-theme/xcursor-transparent-theme_%.bbappend