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/conf/layer.conf b/poky/meta/conf/layer.conf
index 315fb93..c67dec4 100644
--- a/poky/meta/conf/layer.conf
+++ b/poky/meta/conf/layer.conf
@@ -7,12 +7,12 @@
 BBFILE_PATTERN_core = "^${LAYERDIR}/"
 BBFILE_PRIORITY_core = "5"
 
-LAYERSERIES_CORENAMES = "sumo"
+LAYERSERIES_CORENAMES = "thud"
 
 # This should only be incremented on significant changes that will
 # cause compatibility issues with other layers
 LAYERVERSION_core = "11"
-LAYERSERIES_COMPAT_core = "sumo"
+LAYERSERIES_COMPAT_core = "thud"
 
 BBLAYERS_LAYERINDEX_NAME_core = "openembedded-core"
 
@@ -74,9 +74,27 @@
   gnome-icon-theme->librsvg \
   font-alias->font-util \
   systemd-boot->systemd-bootconf \
+  systemd->systemd-conf \
+  weston->weston-conf \
   weston-init->weston \
   weston-init->kbd \
 "
 
+# Avoid adding bison-native to the sysroot without a specific
+# dependency in the recipe. This means indirect dependencies
+# (e.g. X -> Y -> binutils-cross -> bison-native) no longer meet the
+# dependency incidentally. This improves determinism and avoids build
+# failures when people switch to external toolchains.
+SSTATE_EXCLUDEDEPS_SYSROOT += ".*->bison-native"
+# Nothing needs to depend on libc-initial/gcc-cross-initial
+# base-passwd/shadow-sysroot don't need their dependencies
+SSTATE_EXCLUDEDEPS_SYSROOT += "\
+    .*->.*-initial.* \
+    .*(base-passwd|shadow-sysroot)->.* \
+"
+# Avoid adding autoconf-archive-native to sysroot without a specific
+# dependency in the recipe.
+SSTATE_EXCLUDEDEPS_SYSROOT += ".*->autoconf-archive-native"
+
 # We need to keep bitbake tools in PATH
 PATH := "${@os.path.dirname(bb.utils.which(d.getVar('PATH'),'bitbake'))}:${HOSTTOOLS_DIR}"