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/meta-openembedded/meta-oe/recipes-dbs/postgresql/files/0001-Use-pkg-config-for-libxml2-detection.patch b/meta-openembedded/meta-oe/recipes-dbs/postgresql/files/0001-Use-pkg-config-for-libxml2-detection.patch
index fafbc25..f14da06 100644
--- a/meta-openembedded/meta-oe/recipes-dbs/postgresql/files/0001-Use-pkg-config-for-libxml2-detection.patch
+++ b/meta-openembedded/meta-oe/recipes-dbs/postgresql/files/0001-Use-pkg-config-for-libxml2-detection.patch
@@ -1,26 +1,29 @@
-From d52e330be895bb8c5f0fb3e2884766acbd942a85 Mon Sep 17 00:00:00 2001
-From: Philip Balister <philip@balister.org>
-Date: Tue, 1 Jul 2014 09:40:44 -0400
-Subject: [PATCH] Use pkg-config for libxml2 detection.
+From d3ee8c8df5808b63e86f40831f2ba62cbb33d291 Mon Sep 17 00:00:00 2001
+From: Changqing Li <changqing.li@windriver.com>
+Date: Wed, 8 Aug 2018 09:18:27 +0800
+Subject: [PATCH] postgresql: Use pkg-config for libxml2 detection.
 
 Upstream-Status: Inappropriate [configuration]
 
 xml2-config does not work. Use pkgconfig to set CPPFLAGS and LIBS.
 
 Signed-off-by: Philip Balister <philip@balister.org>
+
+upate to version 10.4
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
 ---
  configure.in | 15 ++-------------
  1 file changed, 2 insertions(+), 13 deletions(-)
 
-Index: postgresql-9.4.20/configure.in
-===================================================================
---- postgresql-9.4.20.orig/configure.in
-+++ postgresql-9.4.20/configure.in
-@@ -789,19 +789,8 @@ PGAC_ARG_BOOL(with, libxml, no, [build w
+diff --git a/configure.in b/configure.in
+index d9fe56e..3e2cd3a 100644
+--- a/configure.in
++++ b/configure.in
+@@ -816,19 +816,8 @@ PGAC_ARG_BOOL(with, libxml, no, [build with XML support],
                [AC_DEFINE([USE_LIBXML], 1, [Define to 1 to build with XML support. (--with-libxml)])])
  
  if test "$with_libxml" = yes ; then
--  AC_CHECK_PROGS(XML2_CONFIG, xml2-config)
+-  PGAC_PATH_PROGS(XML2_CONFIG, xml2-config)
 -  if test -n "$XML2_CONFIG"; then
 -    for pgac_option in `$XML2_CONFIG --cflags`; do
 -      case $pgac_option in
@@ -33,8 +36,11 @@
 -      esac
 -    done
 -  fi
-+  CPPFLAGS="$CPPFLAGS `pkg-config --short-errors --print-errors --cflags "libxml-2.0" 2>&1`"
-+  LIBS="`pkg-config --short-errors --print-errors --libs "libxml-2.0" 2>&1` $LIBS"
++    CPPFLAGS="$CPPFLAGS `pkg-config --short-errors --print-errors --cflags "libxml-2.0" 2>&1`"
++    LIBS="`pkg-config --short-errors --print-errors --libs "libxml-2.0" 2>&1` $LIBS"
  fi
  
  AC_SUBST(with_libxml)
+-- 
+2.7.4
+