meta-quanta: gsj: Add explicit layer dependencies

We want the machine layer to be guaranteed to override our top-level
layers.

Change-Id: I9737762255be61e5af2c32881d7024133f72bf1e
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-quanta/meta-gsj/conf/layer.conf b/meta-quanta/meta-gsj/conf/layer.conf
index 7591e09..372fb65 100644
--- a/meta-quanta/meta-gsj/conf/layer.conf
+++ b/meta-quanta/meta-gsj/conf/layer.conf
@@ -8,3 +8,4 @@
 BBFILE_COLLECTIONS += "gsj-layer"
 BBFILE_PATTERN_gsj-layer := "^${LAYERDIR}/"
 LAYERSERIES_COMPAT_gsj-layer = "hardknott honister"
+LAYERDEPENDS_gsj-layer = "core phosphor-layer google-layer quanta-layer"