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-connectivity/avahi/avahi.inc b/poky/meta/recipes-connectivity/avahi/avahi.inc
index 1184684..8339e45 100644
--- a/poky/meta/recipes-connectivity/avahi/avahi.inc
+++ b/poky/meta/recipes-connectivity/avahi/avahi.inc
@@ -19,7 +19,9 @@
                     file://avahi-daemon/main.c;endline=21;md5=9ee77368c5407af77caaef1b07285969 \
                     file://avahi-client/client.h;endline=23;md5=f4ac741a25c4f434039ba3e18c8674cf"
 
-SRC_URI = "https://github.com/lathiat/avahi/releases/download/v${PV}/avahi-${PV}.tar.gz"
+SRC_URI = "https://github.com/lathiat/avahi/releases/download/v${PV}/avahi-${PV}.tar.gz \
+           file://fix-CVE-2017-6519.patch \
+           "
 
 UPSTREAM_CHECK_URI = "https://github.com/lathiat/avahi/releases/"
 SRC_URI[md5sum] = "d76c59d0882ac6c256d70a2a585362a6"