meta-intel-openbmc: prep for new override syntax

Ran `scripts/contrib/convert-overrides.py` from upstream Yocto and
fixed up a few by hand that were missed.

Tested: Built s2600wf.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Change-Id: I983385c8cdd4e2727c5c1a3d56952d6ac7fd89cc
diff --git a/meta-intel-openbmc/meta-s2600wf/conf/layer.conf b/meta-intel-openbmc/meta-s2600wf/conf/layer.conf
index 82a9da0..936b1a9 100644
--- a/meta-intel-openbmc/meta-s2600wf/conf/layer.conf
+++ b/meta-intel-openbmc/meta-s2600wf/conf/layer.conf
@@ -8,4 +8,4 @@
 BBFILE_COLLECTIONS += "s2600wf"
 BBFILE_PATTERN_s2600wf = ""
 BBFILE_PRIORITY_s2600wf = "5"
-LAYERSERIES_COMPAT_s2600wf = "gatesgarth hardknott"
+LAYERSERIES_COMPAT_s2600wf = "gatesgarth hardknott honister"