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/lib/oeqa/selftest/cases/prservice.py b/poky/meta/lib/oeqa/selftest/cases/prservice.py
index 479e520..796ad4f 100644
--- a/poky/meta/lib/oeqa/selftest/cases/prservice.py
+++ b/poky/meta/lib/oeqa/selftest/cases/prservice.py
@@ -19,7 +19,7 @@
     def get_pr_version(self, package_name):
         package_data_file = os.path.join(self.pkgdata_dir, 'runtime', package_name)
         package_data = ftools.read_file(package_data_file)
-        find_pr = re.search("PKGR: r[0-9]+\.([0-9]+)", package_data)
+        find_pr = re.search(r"PKGR: r[0-9]+\.([0-9]+)", package_data)
         self.assertTrue(find_pr, "No PKG revision found in %s" % package_data_file)
         return int(find_pr.group(1))
 
@@ -29,7 +29,7 @@
         package_stamps_path = "/".join(stampdata[:-1])
         stamps = []
         for stamp in os.listdir(package_stamps_path):
-            find_stamp = re.match("%s\.%s\.([a-z0-9]{32})" % (re.escape(prefix), recipe_task), stamp)
+            find_stamp = re.match(r"%s\.%s\.([a-z0-9]{32})" % (re.escape(prefix), recipe_task), stamp)
             if find_stamp:
                 stamps.append(find_stamp.group(1))
         self.assertFalse(len(stamps) == 0, msg="Cound not find stamp for task %s for recipe %s" % (recipe_task, package_name))