meta-yadro: update Yocto compat for gatesgarth

The next release of Yocto is soon and most of the upstream
layers have switched support strings for it.  Support layer
compat for gatesgarth (current) and dunfell (previous).

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I0ac503238d6fc845ec5b690bf3ea90c5b7b56596
diff --git a/meta-nicole/conf/layer.conf b/meta-nicole/conf/layer.conf
index 722185c..6bb50b7 100644
--- a/meta-nicole/conf/layer.conf
+++ b/meta-nicole/conf/layer.conf
@@ -7,4 +7,4 @@
 
 BBFILE_COLLECTIONS += "nicole-layer"
 BBFILE_PATTERN_nicole-layer := "^${LAYERDIR}/"
-LAYERSERIES_COMPAT_nicole-layer = "warrior zeus dunfell"
+LAYERSERIES_COMPAT_nicole-layer = "dunfell gatesgarth"
diff --git a/meta-vesnin/conf/layer.conf b/meta-vesnin/conf/layer.conf
index d5c27d4..ed65950 100644
--- a/meta-vesnin/conf/layer.conf
+++ b/meta-vesnin/conf/layer.conf
@@ -7,4 +7,4 @@
 
 BBFILE_COLLECTIONS += "vesnin-layer"
 BBFILE_PATTERN_vesnin-layer = "^${LAYERDIR}/"
-LAYERSERIES_COMPAT_vesnin-layer = "warrior zeus dunfell"
+LAYERSERIES_COMPAT_vesnin-layer = "dunfell gatesgarth"