meta-ibm: phosphor-gevent: 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: Ief36d552e7f4938e189819955b7830c9695ddebc
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/recipes-phosphor/phosphor-gevent/phosphor-gevent.bbappend b/recipes-phosphor/phosphor-gevent/phosphor-gevent%.bbappend
similarity index 100%
rename from recipes-phosphor/phosphor-gevent/phosphor-gevent.bbappend
rename to recipes-phosphor/phosphor-gevent/phosphor-gevent%.bbappend