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-python/recipes-extended/python-blivet/python3-blivet/0008-use-oe-variable-to-replace-hardcoded-dir.patch b/meta-openembedded/meta-python/recipes-extended/python-blivet/python3-blivet/0008-use-oe-variable-to-replace-hardcoded-dir.patch
index feb5647..ade1862 100644
--- a/meta-openembedded/meta-python/recipes-extended/python-blivet/python3-blivet/0008-use-oe-variable-to-replace-hardcoded-dir.patch
+++ b/meta-openembedded/meta-python/recipes-extended/python-blivet/python3-blivet/0008-use-oe-variable-to-replace-hardcoded-dir.patch
@@ -1,4 +1,4 @@
-From 7f57b2cd145d67c20beb02d5495b502f7af012cd Mon Sep 17 00:00:00 2001
+From 12e2579333258d1a690f8718e91b0f217078e886 Mon Sep 17 00:00:00 2001
 From: Hongxu Jia <hongxu.jia@windriver.com>
 Date: Mon, 8 May 2017 03:54:12 -0400
 Subject: [PATCH 08/11] use oe variable to replace hardcoded dir
@@ -11,7 +11,7 @@
  1 file changed, 4 insertions(+), 4 deletions(-)
 
 diff --git a/setup.py b/setup.py
-index 7edab2c..9be3187 100644
+index b745a79..b5b4258 100644
 --- a/setup.py
 +++ b/setup.py
 @@ -61,10 +61,10 @@ class blivet_sdist(sdist):