treewide: add nanbield to LAYERSERIES_COMPAT

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I85272779478b66452acd11be93f5fea99e4c3a34
diff --git a/meta-ibm/meta-system1/conf/layer.conf b/meta-ibm/meta-system1/conf/layer.conf
index c94b321..1262a04 100644
--- a/meta-ibm/meta-system1/conf/layer.conf
+++ b/meta-ibm/meta-system1/conf/layer.conf
@@ -7,4 +7,4 @@
 
 BBFILE_COLLECTIONS += "system1-layer"
 BBFILE_PATTERN_system1-layer := "^${LAYERDIR}/"
-LAYERSERIES_COMPAT_system1-layer = "langdale mickledore"
+LAYERSERIES_COMPAT_system1-layer = "mickledore nanbield"