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-support/libcheck/libcheck/not-echo-compiler-info-to-check_stdint.h.patch b/poky/meta/recipes-support/libcheck/libcheck/not-echo-compiler-info-to-check_stdint.h.patch
new file mode 100644
index 0000000..3c75727
--- /dev/null
+++ b/poky/meta/recipes-support/libcheck/libcheck/not-echo-compiler-info-to-check_stdint.h.patch
@@ -0,0 +1,19 @@
+Do not echo compiler info in a comment line to check_stdint.h which causes
+multilib install file conflict.
+
+Upstream-Status: Pending
+
+Signed-off-by: Kai Kang <kai.kang@windriver.com>
+
+diff --git a/m4/ax_create_stdint_h.m4 b/m4/ax_create_stdint_h.m4
+index 33a21f8..eacc37a 100644
+--- a/m4/ax_create_stdint_h.m4
++++ b/m4/ax_create_stdint_h.m4
+@@ -272,7 +272,6 @@ echo "#ifndef" $_ac_stdint_h >$ac_stdint
+ echo "#define" $_ac_stdint_h "1" >>$ac_stdint
+ echo "#ifndef" _GENERATED_STDINT_H >>$ac_stdint
+ echo "#define" _GENERATED_STDINT_H '"'$PACKAGE $VERSION'"' >>$ac_stdint
+-echo "/* generated $ac_cv_stdint_message */" >>$ac_stdint
+ if test "_$ac_cv_header_stdint_t" != "_" ; then
+ echo "#define _STDINT_HAVE_STDINT_H" "1" >>$ac_stdint
+ echo "#include <stdint.h>" >>$ac_stdint