hardknott: yocto release

Latest upstream yocto has moved on to the 3.3 hardknott release

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: Ieae36798d66d21c2c642931f06407d3bb2acf163
diff --git a/meta-lenovo/meta-hr855xg2/conf/layer.conf b/meta-lenovo/meta-hr855xg2/conf/layer.conf
index 8402ee9..3641432 100644
--- a/meta-lenovo/meta-hr855xg2/conf/layer.conf
+++ b/meta-lenovo/meta-hr855xg2/conf/layer.conf
@@ -11,4 +11,4 @@
 BBFILE_COLLECTIONS += "hr855xg2-layer"
 BBFILE_PATTERN_hr855xg2-layer := "^${LAYERDIR}/"
 BBFILE_PRIORITY_hr855xg2-layer = "5"
-LAYERSERIES_COMPAT_hr855xg2-layer = "dunfell gatesgarth"
+LAYERSERIES_COMPAT_hr855xg2-layer = "gatesgarth hardknott"