reset upstream subtrees to yocto 2.6

Reset the following subtrees on thud HEAD:

  poky: 87e3a9739d
  meta-openembedded: 6094ae18c8
  meta-security: 31dc4e7532
  meta-raspberrypi: a48743dc36
  meta-xilinx: c42016e2e6

Also re-apply backports that didn't make it into thud:
  poky:
    17726d0 systemd-systemctl-native: handle Install wildcards

  meta-openembedded:
    4321a5d libtinyxml2: update to 7.0.1
    042f0a3 libcereal: Add native and nativesdk classes
    e23284f libcereal: Allow empty package
    030e8d4 rsyslog: curl-less build with fmhttp PACKAGECONFIG
    179a1b9 gtest: update to 1.8.1

Squashed OpenBMC subtree compatibility updates:
  meta-aspeed:
    Brad Bishop (1):
          aspeed: add yocto 2.6 compatibility

  meta-ibm:
    Brad Bishop (1):
          ibm: prepare for yocto 2.6

  meta-ingrasys:
    Brad Bishop (1):
          ingrasys: set layer compatibility to yocto 2.6

  meta-openpower:
    Brad Bishop (1):
          openpower: set layer compatibility to yocto 2.6

  meta-phosphor:
    Brad Bishop (3):
          phosphor: set layer compatibility to thud
          phosphor: libgpg-error: drop patches
          phosphor: react to fitimage artifact rename

    Ed Tanous (4):
          Dropbear: upgrade options for latest upgrade
          yocto2.6: update openssl options
          busybox: remove upstream watchdog patch
          systemd: Rebase CONFIG_CGROUP_BPF patch

Change-Id: I7b1fe71cca880d0372a82d94b5fd785323e3a9e7
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/poky/meta/recipes-devtools/python/python-subunit.inc b/poky/meta/recipes-devtools/python/python-subunit.inc
new file mode 100644
index 0000000..afaaa51
--- /dev/null
+++ b/poky/meta/recipes-devtools/python/python-subunit.inc
@@ -0,0 +1,14 @@
+SUMMARY = "Python implementation of subunit test streaming protocol"
+HOMEPAGE = "https://pypi.python.org/pypi/python-subunit/"
+SECTION = "devel/python"
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://README.rst;beginline=1;endline=20;md5=909c08e291647fd985fbe5d9836d51b6"
+
+PYPI_PACKAGE = "python-subunit"
+
+SRC_URI[md5sum] = "16d468a3aeafe6c60a0c3b2b9132d65b"
+SRC_URI[sha256sum] = "9607edbee4c1e5a30ff88549ce8d9feb0b9bcbcb5e55033a9d76e86075465cbb"
+
+inherit pypi
+
+BBCLASSEXTEND = "nativesdk"