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-support/atk/at-spi2-atk_2.26.2.bb b/poky/meta/recipes-support/atk/at-spi2-atk_2.26.2.bb
new file mode 100644
index 0000000..16d8e45
--- /dev/null
+++ b/poky/meta/recipes-support/atk/at-spi2-atk_2.26.2.bb
@@ -0,0 +1,20 @@
+SUMMARY = "AT-SPI 2 Toolkit Bridge"
+HOMEPAGE = "https://wiki.linuxfoundation.org/accessibility/d-bus"
+LICENSE = "LGPLv2"
+LIC_FILES_CHKSUM = "file://COPYING;md5=e9f288ba982d60518f375b5898283886"
+
+SRC_URI[archive.md5sum] = "355c7916a69513490cb83ad34016b169"
+SRC_URI[archive.sha256sum] = "61891f0abae1689f6617a963105a3f1dcdab5970c4a36ded9c79a7a544b16a6e"
+
+DEPENDS = "dbus glib-2.0 glib-2.0-native atk at-spi2-core libxml2"
+
+GNOMEBASEBUILDCLASS = "meson"
+inherit gnomebase distro_features_check upstream-version-is-even
+
+# The at-spi2-core requires x11 in DISTRO_FEATURES
+REQUIRED_DISTRO_FEATURES = "x11"
+
+PACKAGES =+ "${PN}-gnome ${PN}-gtk2"
+
+FILES_${PN}-gnome = "${libdir}/gnome-settings-daemon-3.0/gtk-modules"
+FILES_${PN}-gtk2 = "${libdir}/gtk-2.0/modules/libatk-bridge.*"