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-oe/recipes-support/multipath-tools/files/0002-multipath-tools-remove-c-from-__cpluscplus-misspelle.patch b/meta-openembedded/meta-oe/recipes-support/multipath-tools/files/0002-multipath-tools-remove-c-from-__cpluscplus-misspelle.patch
new file mode 100644
index 0000000..73f000a
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-support/multipath-tools/files/0002-multipath-tools-remove-c-from-__cpluscplus-misspelle.patch
@@ -0,0 +1,33 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Xose Vazquez Perez <xose.vazquez@gmail.com>
+Date: Tue, 24 Apr 2018 15:03:40 +0200
+Subject: [PATCH] multipath-tools: remove "c" from __cpluscplus, misspelled
+
+found by cppcheck(http://cppcheck.sf.net/):
+[libmpathcmd/mpath_cmd.h:24]: (error) Invalid number of character '{' when these macros are defined: '__cpluscplus'.
+
+Cc: Benjamin Marzinski <bmarzins@redhat.com>
+Cc: Christophe Varoqui <christophe.varoqui@opensvc.com>
+Cc: DM ML <dm-devel@redhat.com>
+Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
+Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
+---
+ libmpathcmd/mpath_cmd.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libmpathcmd/mpath_cmd.h b/libmpathcmd/mpath_cmd.h
+index aaa8da9..df9d938 100644
+--- a/libmpathcmd/mpath_cmd.h
++++ b/libmpathcmd/mpath_cmd.h
+@@ -20,7 +20,7 @@
+ #ifndef LIB_MPATH_CMD_H
+ #define LIB_MPATH_CMD_H
+ 
+-#ifdef __cpluscplus
++#ifdef __cplusplus
+ extern "C" {
+ #endif
+ 
+-- 
+2.7.4
+