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/liburcu/liburcu_0.10.1.bb b/poky/meta/recipes-support/liburcu/liburcu_0.10.2.bb
similarity index 84%
rename from poky/meta/recipes-support/liburcu/liburcu_0.10.1.bb
rename to poky/meta/recipes-support/liburcu/liburcu_0.10.2.bb
index 5eb91e1..b4b6e23 100644
--- a/poky/meta/recipes-support/liburcu/liburcu_0.10.1.bb
+++ b/poky/meta/recipes-support/liburcu/liburcu_0.10.2.bb
@@ -11,8 +11,8 @@
            file://Add-support-for-the-RISC-V-architecture.patch \
            "
 
-SRC_URI[md5sum] = "281a2f92fdc39c40ad6b76f6631fdbd7"
-SRC_URI[sha256sum] = "9c09220be4435dc27fcd22d291707b94b97f159e0c442fbcd60c168f8f79eb06"
+SRC_URI[md5sum] = "7c424c5183ec009d87e0f70c23e92f1b"
+SRC_URI[sha256sum] = "b3f6888daf6fe02c1f8097f4a0898e41b5fe9975e121dc792b9ddef4b17261cc"
 
 S = "${WORKDIR}/userspace-rcu-${PV}"
 inherit autotools multilib_header