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/bitbake/bin/bitbake b/poky/bitbake/bin/bitbake
index 342cef9..57dec2a 100755
--- a/poky/bitbake/bin/bitbake
+++ b/poky/bitbake/bin/bitbake
@@ -38,7 +38,7 @@
 if sys.getfilesystemencoding() != "utf-8":
     sys.exit("Please use a locale setting which supports UTF-8 (such as LANG=en_US.UTF-8).\nPython can't change the filesystem locale after loading so we need a UTF-8 when Python starts or things won't work.")
 
-__version__ = "1.38.0"
+__version__ = "1.40.0"
 
 if __name__ == "__main__":
     if __version__ != bb.__version__:
diff --git a/poky/bitbake/bin/bitbake-selftest b/poky/bitbake/bin/bitbake-selftest
index afe1603..cfa7ac5 100755
--- a/poky/bitbake/bin/bitbake-selftest
+++ b/poky/bitbake/bin/bitbake-selftest
@@ -22,16 +22,21 @@
 import unittest
 try:
     import bb
+    import layerindexlib
 except RuntimeError as exc:
     sys.exit(str(exc))
 
 tests = ["bb.tests.codeparser",
+         "bb.tests.cooker",
          "bb.tests.cow",
          "bb.tests.data",
          "bb.tests.event",
          "bb.tests.fetch",
          "bb.tests.parse",
-         "bb.tests.utils"]
+         "bb.tests.utils",
+         "layerindexlib.tests.layerindexobj",
+         "layerindexlib.tests.restapi",
+         "layerindexlib.tests.cooker"]
 
 for t in tests:
     t = '.'.join(t.split('.')[:3])