yocto:mickledore: add support for new yocto layer

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I8e54833ac78e540e9dd5011533d53ff9a3af6763
diff --git a/meta-security/conf/layer.conf b/meta-security/conf/layer.conf
index 470c7f6..84346a1 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 = "kirkstone langdale"
+LAYERSERIES_COMPAT_security = "langdale mickledore"
 
 LAYERDEPENDS_security = "core openembedded-layer"