openpower: phosphor-webui: set append wildcard

For a recipe without a suffix piece, add wildcard to the append.  Next
will update the recipe.  Then update the append again.

Change-Id: Ifb1c26ab9b48ed6a1f72eb6abb103a20c48bbd23
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/recipes-phosphor/webui/phosphor-webui.bbappend b/recipes-phosphor/webui/phosphor-webui%.bbappend
similarity index 100%
rename from recipes-phosphor/webui/phosphor-webui.bbappend
rename to recipes-phosphor/webui/phosphor-webui%.bbappend