Revert "subtree updates"

Needs to go through CI

This reverts commit fc7e7973f3119e2bad511209aa336537dc5ffbed.
diff --git a/meta-security/conf/layer.conf b/meta-security/conf/layer.conf
index 3e8db1f..a436f97 100644
--- a/meta-security/conf/layer.conf
+++ b/meta-security/conf/layer.conf
@@ -9,7 +9,7 @@
 BBFILE_PATTERN_security = "^${LAYERDIR}/"
 BBFILE_PRIORITY_security = "8"
 
-LAYERSERIES_COMPAT_security = "nanbield"
+LAYERSERIES_COMPAT_security = "mickledore"
 
 LAYERDEPENDS_security = "core openembedded-layer"