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-raspberrypi/recipes-graphics/mesa/mesa-gl_%.bbappend b/meta-raspberrypi/recipes-graphics/mesa/mesa-gl_%.bbappend
index 7897125..08ec1c5 100644
--- a/meta-raspberrypi/recipes-graphics/mesa/mesa-gl_%.bbappend
+++ b/meta-raspberrypi/recipes-graphics/mesa/mesa-gl_%.bbappend
@@ -1 +1,6 @@
 PACKAGECONFIG_append_rpi = " gbm"
+PROVIDES_append_rpi = " virtual/libgbm"
+
+do_install_append_rpi() {
+    rm -rf ${D}${includedir}/KHR/khrplatform.h
+}