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/pkgconf/pkgconf_1.5.3.bb b/poky/meta/recipes-devtools/pkgconf/pkgconf_1.5.3.bb
new file mode 100644
index 0000000..415478d
--- /dev/null
+++ b/poky/meta/recipes-devtools/pkgconf/pkgconf_1.5.3.bb
@@ -0,0 +1,69 @@
+SUMMARY = "pkgconf provides compiler and linker configuration for development frameworks."
+DESCRIPTION = "pkgconf is a program which helps to configure compiler and linker \
+flags for development frameworks. It is similar to pkg-config from \
+freedesktop.org, providing additional functionality while also maintaining \
+compatibility."
+HOMEPAGE = "http://pkgconf.org"
+BUGTRACKER = "https://github.com/pkgconf/pkgconf/issues"
+SECTION = "devel"
+PROVIDES += "pkgconfig"
+RPROVIDES_${PN} += "pkgconfig"
+DEFAULT_PREFERENCE = "-1"
+
+# The pkgconf license seems to be functionally equivalent to BSD-2-Clause or
+# ISC, but has different wording, so needs its own name.
+LICENSE = "pkgconf"
+LIC_FILES_CHKSUM = "file://COPYING;md5=2214222ec1a820bd6cc75167a56925e0"
+
+SRC_URI = "\
+    https://distfiles.dereferenced.org/pkgconf/pkgconf-${PV}.tar.xz \
+    file://pkg-config-wrapper \
+    file://pkg-config-native.in \
+    file://pkg-config-esdk.in \
+"
+SRC_URI[md5sum] = "c21743bca14c882c0f282746168a5edc"
+SRC_URI[sha256sum] = "d3468308553c94389dadfd10c4d1067269052b5364276a9d24a643c88485f715"
+
+inherit autotools
+
+EXTRA_OECONF += "--with-pkg-config-dir='${libdir}/pkgconfig:${datadir}/pkgconfig'"
+
+do_install_append () {
+    # Install a wrapper which deals, as much as possible with pkgconf vs
+    # pkg-config compatibility issues.
+    install -m 0755 "${WORKDIR}/pkg-config-wrapper" "${D}${bindir}/pkg-config"
+}
+
+do_install_append_class-native () {
+    # Install a pkg-config-native wrapper that will use the native sysroot instead
+    # of the MACHINE sysroot, for using pkg-config when building native tools.
+    sed -e "s|@PATH_NATIVE@|${PKG_CONFIG_PATH}|" \
+        < ${WORKDIR}/pkg-config-native.in > ${B}/pkg-config-native
+    install -m755 ${B}/pkg-config-native ${D}${bindir}/pkg-config-native
+    sed -e "s|@PATH_NATIVE@|${PKG_CONFIG_PATH}|" \
+        -e "s|@LIBDIR_NATIVE@|${PKG_CONFIG_LIBDIR}|" \
+        < ${WORKDIR}/pkg-config-esdk.in > ${B}/pkg-config-esdk
+    install -m755 ${B}/pkg-config-esdk ${D}${bindir}/pkg-config-esdk
+}
+
+# When using the RPM generated automatic package dependencies, some packages
+# will end up requiring 'pkgconfig(pkg-config)'.  Allow this behavior by
+# specifying an appropriate provide.
+RPROVIDES_${PN} += "pkgconfig(pkg-config)"
+
+# Include pkg.m4 in the main package, leaving libpkgconf dev files in -dev
+FILES_${PN}-dev_remove = "${datadir}/aclocal"
+FILES_${PN} += "${datadir}/aclocal"
+
+BBCLASSEXTEND += "native nativesdk"
+
+pkgconf_sstate_fixup_esdk () {
+   if [ "${BB_CURRENTTASK}" = "populate_sysroot_setscene" -a "${WITHIN_EXT_SDK}" = "1" ] ; then
+       pkgconfdir="${SSTATE_INSTDIR}/recipe-sysroot-native/${bindir_native}"
+       mv $pkgconfdir/pkg-config $pkgconfdir/pkg-config.real
+       lnr $pkgconfdir/pkg-config-esdk $pkgconfdir/pkg-config
+       sed -i -e "s|^pkg-config|pkg-config.real|" $pkgconfdir/pkg-config-native
+   fi
+}
+
+SSTATEPOSTUNPACKFUNCS_append_class-native = " pkgconf_sstate_fixup_esdk"