dunfell: palmetto and romulus support

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I4c77d84f4ec8dd95a47ec757a720251b0d1a3079
diff --git a/meta-palmetto/conf/layer.conf b/meta-palmetto/conf/layer.conf
index 0bbb885..9dabd98 100644
--- a/meta-palmetto/conf/layer.conf
+++ b/meta-palmetto/conf/layer.conf
@@ -7,4 +7,4 @@
 
 BBFILE_COLLECTIONS += "palmetto-layer"
 BBFILE_PATTERN_palmetto-layer := "^${LAYERDIR}/"
-LAYERSERIES_COMPAT_palmetto-layer = "warrior zeus"
+LAYERSERIES_COMPAT_palmetto-layer = "warrior zeus dunfell"