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-graphics/fontconfig/fontconfig_2.12.6.bb b/poky/meta/recipes-graphics/fontconfig/fontconfig_2.12.6.bb
index d4cbce8..cec5247 100644
--- a/poky/meta/recipes-graphics/fontconfig/fontconfig_2.12.6.bb
+++ b/poky/meta/recipes-graphics/fontconfig/fontconfig_2.12.6.bb
@@ -35,9 +35,15 @@
     rm -f ${S}/src/fcobjshash.h ${S}/src/fcobjshash.gperf
 }
 
+do_install_append_class-target() {
+    # duplicate fc-cache for postinstall script
+    mkdir -p ${D}${libexecdir}
+    ln ${D}${bindir}/fc-cache ${D}${libexecdir}/${MLPREFIX}fc-cache
+}
+
 PACKAGES =+ "fontconfig-utils"
 FILES_${PN} =+ "${datadir}/xml/*"
-FILES_fontconfig-utils = "${bindir}/*"
+FILES_fontconfig-utils = "${bindir}/* ${libexecdir}/*"
 
 # Work around past breakage in debian.bbclass
 RPROVIDES_fontconfig-utils = "libfontconfig-utils"