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-networking/recipes-daemons/openhpi/files/openhpi-netsnmp-cross-compile.patch b/meta-openembedded/meta-networking/recipes-daemons/openhpi/files/openhpi-netsnmp-cross-compile.patch
index 95b0abc..293c8d9 100644
--- a/meta-openembedded/meta-networking/recipes-daemons/openhpi/files/openhpi-netsnmp-cross-compile.patch
+++ b/meta-openembedded/meta-networking/recipes-daemons/openhpi/files/openhpi-netsnmp-cross-compile.patch
@@ -13,36 +13,33 @@
  configure    | 4 ++--
  2 files changed, 4 insertions(+), 4 deletions(-)
 
-diff --git a/acinclude.m4 b/acinclude.m4
-index 82c33f6..727e461 100644
---- a/acinclude.m4
-+++ b/acinclude.m4
+Index: openhpi-3.8.0/acinclude.m4
+===================================================================
+--- openhpi-3.8.0.orig/acinclude.m4
++++ openhpi-3.8.0/acinclude.m4
 @@ -160,8 +160,8 @@ AC_DEFUN([OH_CHECK_NETSNMP],
      ],
      [
          have_netsnmp=yes
--        SNMPFLAGS=`${net_snmp_config:-net-snmp-config} --cflags | perl -p -e 's/-O\S*//g'`
+-        SNMPFLAGS=`${net_snmp_config:-net-snmp-config} --cflags | perl -p -e 's/ -O\S*//g'`
 -        SNMPLIBS=`${net_snmp_config:-net-snmp-config} --libs`
 +        SNMPFLAGS=""
 +        SNMPLIBS=""
          AC_MSG_RESULT(yes)
      ],
      [AC_MSG_RESULT(no.  No SNMP based plugins can be built!)])
-diff --git a/configure b/configure
-index 00067bc..36b913c 100755
---- a/configure
-+++ b/configure
-@@ -15949,8 +15949,8 @@ _ACEOF
+Index: openhpi-3.8.0/configure
+===================================================================
+--- openhpi-3.8.0.orig/configure
++++ openhpi-3.8.0/configure
+@@ -16062,8 +16062,8 @@ _ACEOF
  if ac_fn_c_try_link "$LINENO"; then :
  
          have_netsnmp=yes
--        SNMPFLAGS=`${net_snmp_config:-net-snmp-config} --cflags | perl -p -e 's/-O\S*//g'`
+-        SNMPFLAGS=`${net_snmp_config:-net-snmp-config} --cflags | perl -p -e 's/ -O\S*//g'`
 -        SNMPLIBS=`${net_snmp_config:-net-snmp-config} --libs`
 +        SNMPFLAGS=""
 +        SNMPLIBS=""
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
  $as_echo "yes" >&6; }
  
--- 
-1.9.1
-