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-extended/libreport/files/0001-Makefile.am-remove-doc-and-apidoc.patch b/meta-openembedded/meta-oe/recipes-extended/libreport/files/0001-Makefile.am-remove-doc-and-apidoc.patch
index 9b328a1..97fb097 100644
--- a/meta-openembedded/meta-oe/recipes-extended/libreport/files/0001-Makefile.am-remove-doc-and-apidoc.patch
+++ b/meta-openembedded/meta-oe/recipes-extended/libreport/files/0001-Makefile.am-remove-doc-and-apidoc.patch
@@ -1,7 +1,7 @@
-From db32ba60ca75d288d3ac08b54256cb74d9e1581a Mon Sep 17 00:00:00 2001
+From 1f7d106c7d982fe055addc8d883b161202233175 Mon Sep 17 00:00:00 2001
 From: Hongxu Jia <hongxu.jia@windriver.com>
 Date: Wed, 26 Apr 2017 03:47:58 -0400
-Subject: [PATCH 1/3] Makefile.am: remove doc and apidoc
+Subject: [PATCH 1/4] Makefile.am: remove doc and apidoc
 
 There was a failure at do_install time, so remove doc to workaround.
 
@@ -13,7 +13,7 @@
  1 file changed, 1 insertion(+), 1 deletion(-)
 
 diff --git a/Makefile.am b/Makefile.am
-index c6ab640..fb09fc1 100644
+index 9ad827c..34364a8 100644
 --- a/Makefile.am
 +++ b/Makefile.am
 @@ -1,5 +1,5 @@
@@ -24,5 +24,5 @@
  EXTRA_DIST = \
      libreport.pc.in \
 -- 
-2.8.1
+2.7.4