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-support/libcheck/libcheck_0.12.0.bb b/poky/meta/recipes-support/libcheck/libcheck_0.12.0.bb
index 3bb48a7..94b0dc1 100644
--- a/poky/meta/recipes-support/libcheck/libcheck_0.12.0.bb
+++ b/poky/meta/recipes-support/libcheck/libcheck_0.12.0.bb
@@ -1,5 +1,5 @@
 SUMMARY  = "Check - unit testing framework for C code"
-HOMEPAGE = "http://check.sourceforge.net/"
+HOMEPAGE = "https://libcheck.github.io/check/"
 SECTION = "devel"
 
 LICENSE  = "LGPLv2.1+"