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/files/0001-conditionally-do-not-fetch-code-by-easy_install.patch b/poky/meta/recipes-devtools/python/files/0001-conditionally-do-not-fetch-code-by-easy_install.patch
new file mode 100644
index 0000000..4b17921
--- /dev/null
+++ b/poky/meta/recipes-devtools/python/files/0001-conditionally-do-not-fetch-code-by-easy_install.patch
@@ -0,0 +1,34 @@
+From 019422d19c6401fa8f45b1311ecd31bb087c809d Mon Sep 17 00:00:00 2001
+From: Hongxu Jia <hongxu.jia@windriver.com>
+Date: Tue, 17 Jul 2018 10:13:38 +0800
+Subject: [PATCH] conditionally do not fetch code by easy_install
+
+If var-NO_FETCH_BUILD is set, do not allow to fetch code from
+internet by easy_install.
+
+Upstream-Status: Inappropriate [oe specific]
+
+Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
+---
+ setuptools/command/easy_install.py | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/setuptools/command/easy_install.py b/setuptools/command/easy_install.py
+index 85ee40f..7eb9d2a 100755
+--- a/setuptools/command/easy_install.py
++++ b/setuptools/command/easy_install.py
+@@ -637,6 +637,11 @@ class easy_install(Command):
+             os.path.exists(tmpdir) and rmtree(rmtree_safe(tmpdir))
+ 
+     def easy_install(self, spec, deps=False):
++        if os.environ.get('NO_FETCH_BUILD', None):
++            log.error("ERROR: Do not try to fetch `%s' for building. "
++                      "Please add its native recipe to DEPENDS." % spec)
++            return None
++
+         if not self.editable:
+             self.install_site_py()
+ 
+-- 
+2.7.4
+