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/classes/utils.bbclass b/poky/meta/classes/utils.bbclass
index 0016e5c..cd3d057 100644
--- a/poky/meta/classes/utils.bbclass
+++ b/poky/meta/classes/utils.bbclass
@@ -264,7 +264,7 @@
 realpath=\`readlink -fn \$0\`
 realdir=\`dirname \$realpath\`
 export $exportstring
-exec -a \`dirname \$realpath\`/$cmdname \`dirname \$realpath\`/$cmdname.real "\$@"
+exec -a "\$0" \$realdir/$cmdname.real "\$@"
 END
 	chmod +x $cmd
 }