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-openembedded/meta-oe/recipes-support/gperftools/gperftools_2.7.bb b/meta-openembedded/meta-oe/recipes-support/gperftools/gperftools_2.7.bb
index e9fcc4c..c8b9127 100644
--- a/meta-openembedded/meta-oe/recipes-support/gperftools/gperftools_2.7.bb
+++ b/meta-openembedded/meta-oe/recipes-support/gperftools/gperftools_2.7.bb
@@ -26,4 +26,5 @@
 # {standard input}:434: Error: lo register required -- `ldr pc,[sp]'
 # Makefile:4538: recipe for target 'src/base/libtcmalloc_la-linuxthreads.lo' failed
 ARM_INSTRUCTION_SET_armv5 = "arm"
+ARM_INSTRUCTION_SET_toolchain-clang_arm = "arm"