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/recipes-devtools/python/python-native_2.7.15.bb b/poky/meta/recipes-devtools/python/python-native_2.7.15.bb
index 9d0fe3b..26d67df 100644
--- a/poky/meta/recipes-devtools/python/python-native_2.7.15.bb
+++ b/poky/meta/recipes-devtools/python/python-native_2.7.15.bb
@@ -16,6 +16,8 @@
             file://builddir.patch \
             file://parallel-makeinst-create-bindir.patch \
             file://revert_use_of_sysconfigdata.patch \
+            file://0001-python-native-fix-one-do_populate_sysroot-warning.patch \
+            file://0001-2.7-bpo-34623-Use-XML_SetHashSalt-in-_elementtree-GH.patch \
            "
 
 S = "${WORKDIR}/Python-${PV}"