reset upstream subtrees to HEAD

Reset the following subtrees on HEAD:
  poky: 8217b477a1(master)
  meta-xilinx: 64aa3d35ae(master)
  meta-openembedded: 0435c9e193(master)
  meta-raspberrypi: 490a4441ac(master)
  meta-security: cb6d1c85ee(master)

Squashed patches:
  meta-phosphor: drop systemd 239 patches
  meta-phosphor: mrw-api: use correct install path

Change-Id: I268e2646d9174ad305630c6bbd3fbc1a6105f43d
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/poky/meta-skeleton/conf/layer.conf b/poky/meta-skeleton/conf/layer.conf
index 13bda7b..7d4ffb4 100644
--- a/poky/meta-skeleton/conf/layer.conf
+++ b/poky/meta-skeleton/conf/layer.conf
@@ -14,4 +14,4 @@
 
 LAYERDEPENDS_skeleton = "core"
 
-LAYERSERIES_COMPAT_skeleton = "thud"
+LAYERSERIES_COMPAT_skeleton = "warrior"