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/scripts/autobuilder-worker-prereq-tests b/poky/scripts/autobuilder-worker-prereq-tests
new file mode 100755
index 0000000..bb46c69
--- /dev/null
+++ b/poky/scripts/autobuilder-worker-prereq-tests
@@ -0,0 +1,65 @@
+#!/bin/bash
+#
+# Script which can be run on new autobuilder workers to check all needed configuration is present.
+# Designed to be run in a repo where bitbake/oe-core are already present.
+#
+
+#
+# Todo
+# Add testtools/subunit import test
+# Add python3-git test
+# Add pigz test
+# vnc tests/checkvnc?
+# test sendmail works (for QA email notification)
+# test error report submission works
+# test buildistory git repo works?
+#
+
+. ./oe-init-build-env > /dev/null
+if [ "$?" != "0" ]; then
+    exit 1
+fi
+git config --global user.name > /dev/null
+if [ "$?" != "0" ]; then
+    echo "Please set git config --global user.name"
+    exit 1
+fi
+git config --global user.email > /dev/null
+if [ "$?" != "0" ]; then
+    echo "Please set git config --global user.email"
+    exit 1
+fi
+bitbake -p
+if [ "$?" != "0" ]; then
+    echo "Bitbake parsing failed"
+    exit 1
+fi
+
+WATCHES=$(PATH="/sbin:/usr/sbin:$PATH" sysctl fs.inotify.max_user_watches -n)
+if (( $WATCHES < 65000 )); then
+    echo 'Need to increase watches (echo fs.inotify.max_user_watches=65536 | sudo tee -a /etc/sysctl.conf'
+    exit 1
+fi
+mkdir -p tmp/deploy/images/qemux86-64
+pushd tmp/deploy/images/qemux86-64
+if [ ! -e core-image-minimal-qemux86-64.ext4 ]; then
+    wget http://downloads.yoctoproject.org/releases/yocto/yocto-2.5.1/machines/qemu/qemux86-64/core-image-minimal-qemux86-64.ext4
+fi
+if [ ! -e core-image-minimal-qemux86-64.qemuboot.conf ]; then
+    wget http://downloads.yoctoproject.org/releases/yocto/yocto-2.5.1/machines/qemu/qemux86-64/core-image-minimal-qemux86-64.qemuboot.conf
+fi
+if [ ! -e bzImage-qemux86-64.bin ]; then
+    wget http://downloads.yoctoproject.org/releases/yocto/yocto-2.5.1/machines/qemu/qemux86-64/bzImage-qemux86-64.bin
+fi
+popd
+bitbake qemu-helper-native
+runqemu qemux86-64
+if [ "$?" != "0" ]; then
+    echo "Unable to use runqemu"
+    exit 1
+fi
+runqemu qemux86-64 kvm
+if [ "$?" != "0" ]; then
+    echo "Unable to use runqemu with kvm"
+    exit 1
+fi