add langdale to compatible layer

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I65febeeec11e6e5b40ee728f42cfbe77023dae1e
diff --git a/meta-hpe/meta-gxp/conf/layer.conf b/meta-hpe/meta-gxp/conf/layer.conf
index 567fe84..f36f030 100644
--- a/meta-hpe/meta-gxp/conf/layer.conf
+++ b/meta-hpe/meta-gxp/conf/layer.conf
@@ -7,6 +7,6 @@
 BBFILE_COLLECTIONS += "gxp-layer"
 BBFILE_PATTERN_gxp-layer = "^${LAYERDIR}/"
 LAYERVERSION_gxp-layer = "1"
-LAYERSERIES_COMPAT_gxp-layer = "honister kirkstone"
+LAYERSERIES_COMPAT_gxp-layer = "kirkstone langdale"
 
 GXPBASE = '${@os.path.normpath("${LAYERDIR}/")}'