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-devtools/git/git_2.18.1.bb b/poky/meta/recipes-devtools/git/git_2.18.1.bb
new file mode 100644
index 0000000..b2960c0
--- /dev/null
+++ b/poky/meta/recipes-devtools/git/git_2.18.1.bb
@@ -0,0 +1,11 @@
+require git.inc
+
+EXTRA_OECONF += "ac_cv_snprintf_returns_bogus=no \
+                 ac_cv_fread_reads_directories=${ac_cv_fread_reads_directories=yes} \
+                 "
+EXTRA_OEMAKE += "NO_GETTEXT=1"
+
+SRC_URI[tarball.md5sum] = "9b62c267d878f6cb02f8abc59a99525d"
+SRC_URI[tarball.sha256sum] = "5c710c866d8c9ba3b3e062755e0e9d0ef4f665752bd64810e3eb9f1b0f0eb076"
+SRC_URI[manpages.md5sum] = "ef32a459a4a08a3b8e837a31c925c848"
+SRC_URI[manpages.sha256sum] = "d05bfab2dc45de4f6e7d61ca173071d6902905a4963f7ac3cbca608c0d4592c9"