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/gnu-config/gnu-config_git.bb b/poky/meta/recipes-devtools/gnu-config/gnu-config_git.bb
index 8de8138..4745f19 100644
--- a/poky/meta/recipes-devtools/gnu-config/gnu-config_git.bb
+++ b/poky/meta/recipes-devtools/gnu-config/gnu-config_git.bb
@@ -2,14 +2,14 @@
 DESCRIPTION = "Tool that installs the GNU config.guess / config.sub into a directory tree"
 SECTION = "devel"
 LICENSE = "GPL-3.0-with-autoconf-exception"
-LIC_FILES_CHKSUM = "file://config.guess;beginline=7;endline=27;md5=9bac8b1743c2240ae07cce6e546ac2f2"
+LIC_FILES_CHKSUM = "file://config.guess;beginline=7;endline=27;md5=b75d42f59f706ea56d6a8e00216fca6a"
 
 DEPENDS_class-native = "hostperl-runtime-native"
 
 INHIBIT_DEFAULT_DEPS = "1"
 
-SRCREV = "b576fa87c140b824466ef1638e945e87dc5c0343"
-PV = "20150728+git${SRCPV}"
+SRCREV = "30d53fc428ea42af9d6f4d355db0022e3918a824"
+PV = "20180713+git${SRCPV}"
 
 SRC_URI = "git://git.savannah.gnu.org/config.git \
            file://gnu-configize.in"