meta-s2600wf: Add support for gatesgarth

(From meta-intel rev: b683105b9cb528c8dfc7ed06f7736cc45a353a57)

Change-Id: I99cf2a1a3ea95a701ce713b3a81f6b404f82869e
Signed-off-by: Jason M. Bills <jason.m.bills@linux.intel.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-intel/meta-s2600wf/conf/layer.conf b/meta-intel/meta-s2600wf/conf/layer.conf
index 2bb80b2..c5001be 100644
--- a/meta-intel/meta-s2600wf/conf/layer.conf
+++ b/meta-intel/meta-s2600wf/conf/layer.conf
@@ -8,4 +8,4 @@
 BBFILE_COLLECTIONS += "s2600wf"
 BBFILE_PATTERN_s2600wf = ""
 BBFILE_PRIORITY_s2600wf = "5"
-LAYERSERIES_COMPAT_s2600wf = "dunfell"
+LAYERSERIES_COMPAT_s2600wf = "dunfell gatesgarth"