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-poky/conf/site.conf.sample b/poky/meta-poky/conf/site.conf.sample
index a4c2f9f..5164fed 100644
--- a/poky/meta-poky/conf/site.conf.sample
+++ b/poky/meta-poky/conf/site.conf.sample
@@ -26,7 +26,7 @@
 # If you wish to use certain hosts without the proxy, specify them in NO_PROXY.
 # See the script for details on syntax. The script oe-git-proxy uses some tools
 # that may not be included on HOSTTOOLS, thus  add them manually through
-# HOSTTOOLS += "getent seq"
+# HOSTTOOLS += "getent"
 
 # Uncomment this to use a shared download directory
 #DL_DIR = "/some/shared/download/directory/"