treewide: support yocto kirkstone release

* Deprecate N-1 release (hardknott).
* Enable N+1 release (kirkstone).

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I39e027e02dab64b4390b46ffbd9c299c858f403e
diff --git a/meta-hpe/conf/layer.conf b/meta-hpe/conf/layer.conf
index 1072f7d..dfacc8f 100644
--- a/meta-hpe/conf/layer.conf
+++ b/meta-hpe/conf/layer.conf
@@ -7,7 +7,7 @@
 
 BBFILE_COLLECTIONS += "hpe-layer"
 BBFILE_PATTERN_hpe-layer := "^${LAYERDIR}/meta-common/"
-LAYERSERIES_COMPAT_hpe-layer = "hardknott honister"
+LAYERSERIES_COMPAT_hpe-layer = "honister kirkstone"
 
 # Provide a variable that points the base of the hpe layer.
 HPEBASE = '${@os.path.normpath("${LAYERDIR}/")}'