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/automake/automake/0001-automake-Add-default-libtool_tag-to-cppasm.patch b/poky/meta/recipes-devtools/automake/automake/0001-automake-Add-default-libtool_tag-to-cppasm.patch
index 1221f13..deb1d03 100644
--- a/poky/meta/recipes-devtools/automake/automake/0001-automake-Add-default-libtool_tag-to-cppasm.patch
+++ b/poky/meta/recipes-devtools/automake/automake/0001-automake-Add-default-libtool_tag-to-cppasm.patch
@@ -1,4 +1,4 @@
-From 25a8ac30486798d23f516722d73eb622e6264f28 Mon Sep 17 00:00:00 2001
+From b3c6e1971786cd93a2e3017c92bfbfe96baaf2f7 Mon Sep 17 00:00:00 2001
 From: Khem Raj <raj.khem@gmail.com>
 Date: Wed, 26 Jul 2017 11:19:56 -0700
 Subject: [PATCH] automake: Add default libtool_tag to cppasm.
@@ -6,19 +6,19 @@
     * bin/automake.in (register_language): Define default libtool tag to be CC
     since CPPASCOMPILE is using CC to call assembler
 
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
----
 Upstream-Status: Submitted
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
 
+---
  bin/automake.in | 1 +
  1 file changed, 1 insertion(+)
 
-Index: automake-1.15.1/bin/automake.in
-===================================================================
---- automake-1.15.1.orig/bin/automake.in
-+++ automake-1.15.1/bin/automake.in
-@@ -831,6 +831,7 @@ register_language ('name' => 'cppasm',
- 		   'compiler' => 'CPPASCOMPILE',
+diff --git a/bin/automake.in b/bin/automake.in
+index 3a66965..08ba09a 100644
+--- a/bin/automake.in
++++ b/bin/automake.in
+@@ -898,6 +898,7 @@ register_language ('name' => 'cppasm',
+                    'libtool_tag' => 'CC',
  		   'compile_flag' => '-c',
  		   'output_flag' => '-o',
 +		   'libtool_tag' => 'CC',