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/meta-openembedded/meta-oe/recipes-extended/mozjs/mozjs/0003-workaround-autoconf-2.13-detection-failed.patch b/meta-openembedded/meta-oe/recipes-extended/mozjs/mozjs/0003-workaround-autoconf-2.13-detection-failed.patch
new file mode 100644
index 0000000..a754ff1
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-extended/mozjs/mozjs/0003-workaround-autoconf-2.13-detection-failed.patch
@@ -0,0 +1,28 @@
+From 646a78262b18e19721cd41ee515215221dd241b6 Mon Sep 17 00:00:00 2001
+From: Hongxu Jia <hongxu.jia@windriver.com>
+Date: Thu, 12 Jul 2018 18:12:42 +0800
+Subject: [PATCH 3/5] workaround  autoconf 2.13 detection failed
+
+Upstream-Status: Inappropriate [oe specific]
+
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ build/moz.configure/old.configure | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/build/moz.configure/old.configure b/build/moz.configure/old.configure
+index b32c3f7..ece47f4 100644
+--- a/build/moz.configure/old.configure
++++ b/build/moz.configure/old.configure
+@@ -31,7 +31,7 @@ def autoconf(mozconfig, autoconf):
+     autoconf = autoconf[0] if autoconf else None
+ 
+     for ac in (mozconfig_autoconf, autoconf, 'autoconf-2.13', 'autoconf2.13',
+-               'autoconf213'):
++               'autoconf213', 'autoconf'):
+         if ac:
+             autoconf = find_program(ac)
+             if autoconf:
+-- 
+2.7.4
+