meta-evb: 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).

(From meta-evb rev: 4d356d1b1afe5b7050220a649b894b1309973495)

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Ia4a5889b5cb26171b4578f7a29254c9ad0c527a0
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-evb/meta-evb-enclustra/conf/layer.conf b/meta-evb/meta-evb-enclustra/conf/layer.conf
index 2520e3c..9dbc045 100644
--- a/meta-evb/meta-evb-enclustra/conf/layer.conf
+++ b/meta-evb/meta-evb-enclustra/conf/layer.conf
@@ -3,4 +3,4 @@
 
 BBFILE_COLLECTIONS += "evb-enclustra"
 BBFILE_PATTERN_evb-enclustra = ""
-LAYERSERIES_COMPAT_evb-enclustra = "thud warrior"
+LAYERSERIES_COMPAT_evb-enclustra = "dunfell gatesgarth"
diff --git a/meta-evb/meta-evb-enclustra/meta-evb-zx3-pm3/conf/layer.conf b/meta-evb/meta-evb-enclustra/meta-evb-zx3-pm3/conf/layer.conf
index c981f73..648a0ba 100644
--- a/meta-evb/meta-evb-enclustra/meta-evb-zx3-pm3/conf/layer.conf
+++ b/meta-evb/meta-evb-enclustra/meta-evb-zx3-pm3/conf/layer.conf
@@ -7,4 +7,4 @@
 
 BBFILE_COLLECTIONS += "evb-zx3-pm3"
 BBFILE_PATTERN_evb-zx3-pm3 = ""
-LAYERSERIES_COMPAT_evb-zx3-pm3 = "thud warrior"
+LAYERSERIES_COMPAT_evb-zx3-pm3 = "dunfell gatesgarth"
diff --git a/meta-evb/meta-evb-nuvoton/conf/layer.conf b/meta-evb/meta-evb-nuvoton/conf/layer.conf
index 6617b5f..52eec49 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 = "thud warrior"
+LAYERSERIES_COMPAT_evb-nuvoton = "dunfell gatesgarth"
diff --git a/meta-evb/meta-evb-nuvoton/meta-evb-npcm750/conf/layer.conf b/meta-evb/meta-evb-nuvoton/meta-evb-npcm750/conf/layer.conf
index 51398d0..95fd769 100644
--- a/meta-evb/meta-evb-nuvoton/meta-evb-npcm750/conf/layer.conf
+++ b/meta-evb/meta-evb-nuvoton/meta-evb-npcm750/conf/layer.conf
@@ -3,4 +3,4 @@
 
 BBFILE_COLLECTIONS += "evb-npcm750"
 BBFILE_PATTERN_evb-npcm750 = ""
-LAYERSERIES_COMPAT_evb-npcm750 = "thud warrior"
+LAYERSERIES_COMPAT_evb-npcm750 = "dunfell gatesgarth"