meta-phosphor: liberation-fonts: Make override generic

Reducing the installed font set is not version specific, apply even to
updated versions.

Change-Id: Iddf03fb64cc43d49a4c94d480d141352a300a831
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-phosphor/recipes-phosphor/video/liberation-fonts_2.00.1.bbappend b/meta-phosphor/recipes-graphics/ttf-fonts/liberation-fonts_%.bbappend
similarity index 100%
rename from meta-phosphor/recipes-phosphor/video/liberation-fonts_2.00.1.bbappend
rename to meta-phosphor/recipes-graphics/ttf-fonts/liberation-fonts_%.bbappend