yocto:mickledore: add support for new yocto layer

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I8e54833ac78e540e9dd5011533d53ff9a3af6763
diff --git a/meta-facebook/meta-greatlakes/conf/layer.conf b/meta-facebook/meta-greatlakes/conf/layer.conf
index 40d0f10..76f1226 100644
--- a/meta-facebook/meta-greatlakes/conf/layer.conf
+++ b/meta-facebook/meta-greatlakes/conf/layer.conf
@@ -8,4 +8,4 @@
 BBFILE_COLLECTIONS += "greatlakes-layer"
 BBFILE_PATTERN_greatlakes-layer := "^${LAYERDIR}/"
 
-LAYERSERIES_COMPAT_greatlakes-layer := "kirkstone langdale"
+LAYERSERIES_COMPAT_greatlakes-layer := "langdale mickledore"