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/documentation/dev-manual/dev-manual-start.xml b/poky/documentation/dev-manual/dev-manual-start.xml
index d37c030..6ec5c3c 100644
--- a/poky/documentation/dev-manual/dev-manual-start.xml
+++ b/poky/documentation/dev-manual/dev-manual-start.xml
@@ -44,7 +44,7 @@
             <listitem><para>
                 <emphasis>Determine Who is Going to be Developing:</emphasis>
                 You need to understand who is going to be doing anything
-                related to the Yocto Project and what their roles would be.
+                related to the Yocto Project and determine their roles.
                 Making this determination is essential to completing
                 steps two and three, which are to get your equipment together
                 and set up your development environment's hardware topology.
@@ -951,11 +951,11 @@
                     <literallayout class='monospaced'>
      $ git clone git://git.yoctoproject.org/poky
      Cloning into 'poky'...
-     remote: Counting objects: 416542, done.
-     remote: Compressing objects: 100% (98611/98611), done.
-     remote: Total 416542 (delta 311104), reused 416377 (delta 310939)
-     Receiving objects: 100% (416542/416542), 150.39 MiB | 15.77 MiB/s, done.
-     Resolving deltas: 100% (311104/311104), done.
+     remote: Counting objects: 432160, done.
+     remote: Compressing objects: 100% (102056/102056), done.
+     remote: Total 432160 (delta 323116), reused 432037 (delta 323000)
+     Receiving objects: 100% (432160/432160), 153.81 MiB | 8.54 MiB/s, done.
+     Resolving deltas: 100% (323116/323116), done.
      Checking connectivity... done.
                     </literallayout>
                     Unless you specify a specific development branch or
@@ -1037,13 +1037,15 @@
            .
            .
            .
-       remotes/origin/master-next
-       remotes/origin/master-next2
-       remotes/origin/morty
-       remotes/origin/pinky
-       remotes/origin/purple
        remotes/origin/pyro
+       remotes/origin/pyro-next
        remotes/origin/rocko
+       remotes/origin/rocko-next
+       remotes/origin/sumo
+       remotes/origin/sumo-next
+       remotes/origin/thud
+       remotes/origin/thud-next
+       remotes/origin/warrior
                     </literallayout>
                     </para></listitem>
                 <listitem><para>
@@ -1125,8 +1127,10 @@
      yocto-2.5
      yocto-2.5.1
      yocto-2.5.2
+     yocto-2.5.3
      yocto-2.6
      yocto-2.6.1
+     yocto-2.7
      yocto_1.5_M5.rc8
                     </literallayout>
                     </para></listitem>