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/elfutils/files/0003-fixheadercheck.patch b/poky/meta/recipes-devtools/elfutils/files/0003-fixheadercheck.patch
index 7c49fce..d1c8e41 100644
--- a/poky/meta/recipes-devtools/elfutils/files/0003-fixheadercheck.patch
+++ b/poky/meta/recipes-devtools/elfutils/files/0003-fixheadercheck.patch
@@ -1,4 +1,4 @@
-From 565d5935abf5b58773f9c8385c00189221980d98 Mon Sep 17 00:00:00 2001
+From 04fb3f65ec186df5231dd0c21780a55dcc03c868 Mon Sep 17 00:00:00 2001
 From: Hongxu Jia <hongxu.jia@windriver.com>
 Date: Tue, 15 Aug 2017 17:17:20 +0800
 Subject: [PATCH 3/7] fixheadercheck
@@ -21,7 +21,7 @@
  1 file changed, 2 insertions(+), 2 deletions(-)
 
 diff --git a/libelf/elf32_updatenull.c b/libelf/elf32_updatenull.c
-index d83c0b3..a51bf70 100644
+index 3e9ef61..5351518 100644
 --- a/libelf/elf32_updatenull.c
 +++ b/libelf/elf32_updatenull.c
 @@ -339,8 +339,8 @@ __elfw2(LIBELFBITS,updatenull_wrlock) (Elf *elf, int *change_bop, size_t shnum)
@@ -36,5 +36,5 @@
  		      __libelf_seterrno (ELF_E_INVALID_ALIGN);
  		      return -1;
 -- 
-1.8.3.1
+2.7.4