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-multimedia/libpng/libpng_1.6.35.bb b/poky/meta/recipes-multimedia/libpng/libpng_1.6.35.bb
new file mode 100644
index 0000000..5ae0a91
--- /dev/null
+++ b/poky/meta/recipes-multimedia/libpng/libpng_1.6.35.bb
@@ -0,0 +1,31 @@
+SUMMARY = "PNG image format decoding library"
+HOMEPAGE = "http://www.libpng.org/"
+SECTION = "libs"
+LICENSE = "Libpng"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=4791381a76f106ac4699f6261c65ee29 \
+                    file://png.h;endline=144;md5=090ba5769782e8a1663a45fab1c2b36c \
+                    "
+DEPENDS = "zlib"
+
+LIBV = "16"
+
+SRC_URI = "${SOURCEFORGE_MIRROR}/project/${BPN}/${BPN}${LIBV}/${PV}/${BP}.tar.xz"
+SRC_URI[md5sum] = "678b7e696a62a193ed3503b04bf449d6"
+SRC_URI[sha256sum] = "23912ec8c9584917ed9b09c5023465d71709dce089be503c7867fec68a93bcd7"
+
+MIRRORS += "${SOURCEFORGE_MIRROR}/project/${BPN}/${BPN}${LIBV}/${PV}/ ${SOURCEFORGE_MIRROR}/project/${BPN}/${BPN}${LIBV}/older-releases/${PV}/"
+
+UPSTREAM_CHECK_URI = "http://libpng.org/pub/png/libpng.html"
+
+BINCONFIG = "${bindir}/libpng-config ${bindir}/libpng16-config"
+
+inherit autotools binconfig-disabled pkgconfig
+
+# Work around missing symbols
+EXTRA_OECONF_append_class-target = " ${@bb.utils.contains("TUNE_FEATURES", "neon", "--enable-arm-neon=on", "--enable-arm-neon=off" ,d)}"
+
+PACKAGES =+ "${PN}-tools"
+
+FILES_${PN}-tools = "${bindir}/png-fix-itxt ${bindir}/pngfix ${bindir}/pngcp"
+
+BBCLASSEXTEND = "native nativesdk"