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-supermicro/conf/layer.conf b/meta-supermicro/conf/layer.conf
index a5142e2..435f64b 100644
--- a/meta-supermicro/conf/layer.conf
+++ b/meta-supermicro/conf/layer.conf
@@ -8,6 +8,6 @@
 BBFILE_COLLECTIONS += "supermicro"
 BBFILE_PATTERN_supermicro = "^${LAYERDIR}/"
 LAYERVERSION_supermicro = "1"
-LAYERSERIES_COMPAT_supermicro = "hardknott honister"
+LAYERSERIES_COMPAT_supermicro = "honister kirkstone"
 LAYERDEPENDS_supermicro = "phosphor-layer"