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-evb/meta-evb-nuvoton/conf/layer.conf b/meta-evb/meta-evb-nuvoton/conf/layer.conf
index 5c4dfed..e9f894e 100644
--- a/meta-evb/meta-evb-nuvoton/conf/layer.conf
+++ b/meta-evb/meta-evb-nuvoton/conf/layer.conf
@@ -3,4 +3,4 @@
 
 BBFILE_COLLECTIONS += "evb-nuvoton"
 BBFILE_PATTERN_evb-nuvoton = ""
-LAYERSERIES_COMPAT_evb-nuvoton = "hardknott honister"
+LAYERSERIES_COMPAT_evb-nuvoton = "honister kirkstone"