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-connectivity/dhcp/dhcp/0007-Add-configure-argument-to-make-the-libxml2-dependenc.patch b/poky/meta/recipes-connectivity/dhcp/dhcp/0007-Add-configure-argument-to-make-the-libxml2-dependenc.patch
index 43c26ea..feb0754 100644
--- a/poky/meta/recipes-connectivity/dhcp/dhcp/0007-Add-configure-argument-to-make-the-libxml2-dependenc.patch
+++ b/poky/meta/recipes-connectivity/dhcp/dhcp/0007-Add-configure-argument-to-make-the-libxml2-dependenc.patch
@@ -15,13 +15,13 @@
  configure.ac | 11 +++++++++++
  1 file changed, 11 insertions(+)
 
-diff --git a/configure.ac b/configure.ac
-index 44fb57e..8e9f509 100644
---- a/configure.ac
-+++ b/configure.ac
-@@ -611,6 +611,17 @@ AC_CHECK_FUNCS(strlcat)
- # For HP/UX we need -lipv6 for if_nametoindex, perhaps others.
- AC_SEARCH_LIBS(if_nametoindex, [ipv6])
+Index: dhcp-4.4.1/configure.ac
+===================================================================
+--- dhcp-4.4.1.orig/configure.ac
++++ dhcp-4.4.1/configure.ac
+@@ -642,6 +642,17 @@ if test "$have_nanosleep" = "rt"; then
+ 	LIBS="-lrt $LIBS"
+ fi
  
 +AC_ARG_WITH(libxml2,
 +	AS_HELP_STRING([--with-libxml2], [link against libxml2. this is needed if bind was built with xml2 support enabled]),
@@ -37,6 +37,26 @@
  # check for /dev/random (declares HAVE_DEV_RANDOM)
  AC_MSG_CHECKING(for random device)
  AC_ARG_WITH(randomdev,
--- 
-1.8.3.1
-
+Index: dhcp-4.4.1/configure.ac+lt
+===================================================================
+--- dhcp-4.4.1.orig/configure.ac+lt
++++ dhcp-4.4.1/configure.ac+lt
+@@ -909,6 +909,18 @@ elif test "$want_libtool" = "yes" -a "$u
+ fi
+ AM_CONDITIONAL(INSTALL_BIND, test "$want_install_bind" = "yes")
+ 
++AC_ARG_WITH(libxml2,
++	AS_HELP_STRING([--with-libxml2], [link against libxml2. this is needed if bind was built with xml2 support enabled]),
++	with_libxml2="$withval", with_libxml2="no")
++
++if test x$with_libxml2 != xno; then
++	AC_SEARCH_LIBS(xmlTextWriterStartElement, [xml2],,
++		[if test x$with_libxml2 != xauto; then
++			AC_MSG_FAILURE([*** Cannot find xmlTextWriterStartElement with -lxml2 and libxml2 was requested])
++		fi])
++fi
++
++
+ # OpenLDAP support.
+ AC_ARG_WITH(ldap,
+     AS_HELP_STRING([--with-ldap],[enable OpenLDAP support in dhcpd (default is no)]),