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-graphics/xorg-lib/libx11.inc b/poky/meta/recipes-graphics/xorg-lib/libx11.inc
index 36c950a..ea2ebfb 100644
--- a/poky/meta/recipes-graphics/xorg-lib/libx11.inc
+++ b/poky/meta/recipes-graphics/xorg-lib/libx11.inc
@@ -10,6 +10,9 @@
 
 PE = "1"
 
+SRC_URI[md5sum] = "034fdd6cc5393974d88aec6f5bc96162"
+SRC_URI[sha256sum] = "910e9e30efba4ad3672ca277741c2728aebffa7bc526f04dcfa74df2e52a1348"
+
 PROVIDES = "virtual/libx11"
 
 XORG_PN = "libX11"