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/meta-openembedded/meta-filesystems/README b/meta-openembedded/meta-filesystems/README
index ac0035a..87cb685 100644
--- a/meta-openembedded/meta-filesystems/README
+++ b/meta-openembedded/meta-filesystems/README
@@ -10,30 +10,30 @@
 This layer depends on:
 
   URI: git://git.openembedded.org/bitbake
-  branch: 1.40
+  branch: master
 
   URI: git://git.openembedded.org/openembedded-core
   layers: meta
-  branch: thud
+  branch: master
 
   URI: git://git.openembedded.org/meta-openembedded
   layers: meta-oe
-  branch: thud
+  branch: master
 
 Patches
 =======
 
 Please submit any patches against the filesystems layer to the
 OpenEmbedded development mailing list (openembedded-devel@lists.openembedded.org)
-with '[meta-filesystems][thud]' in the subject.
+with '[meta-filesystems]' in the subject.
 
-Thud maintainer: Armin Kuster <akuster808@gmail.com>
+Layer maintainer: Khem Raj <raj.khem@gmail.com>
 
 When sending single patches, please use something like:
 
    git send-email -1 -M \
         --to openembedded-devel@lists.openembedded.org \
-        --subject-prefix=meta-filesystems][thud][PATCH
+        --subject-prefix=meta-filesystems][PATCH
 
 
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