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-kernel/sysprof/files/0001-fix-non-literal-format-string-issues.patch b/poky/meta/recipes-kernel/sysprof/files/0001-fix-non-literal-format-string-issues.patch
new file mode 100644
index 0000000..38f9f5f
--- /dev/null
+++ b/poky/meta/recipes-kernel/sysprof/files/0001-fix-non-literal-format-string-issues.patch
@@ -0,0 +1,34 @@
+From de13d1f908335cc882c447e4d7c4360b9e5da190 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 6 Sep 2018 17:49:44 -0700
+Subject: [PATCH] fix non-literal format string issues
+
+clang errors out when using -Werror=format-nonliteral
+since the definition of g_strdup_vprintf() from glib-2.0
+is using va_list and clangs still warns where as
+gcc doesn't do that for va_list arguments
+
+Fixes
+src/sp-window.c:96:27: error: format string is not a string literal [-Werror,-Wformat-nonliteral]
+|   str = g_strdup_vprintf (format, args);
+|                           ^~~~~~
+
+Upstream-Status: Submitted [https://gitlab.gnome.org/GNOME/sysprof/merge_requests/6]
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ src/sp-window.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/sp-window.c b/src/sp-window.c
+index 4dfac2d..aff4779 100644
+--- a/src/sp-window.c
++++ b/src/sp-window.c
+@@ -80,7 +80,7 @@ static guint signals [N_SIGNALS];
+ static void sp_window_set_profiler (SpWindow   *self,
+                                     SpProfiler *profiler);
+ 
+-static void
++static G_GNUC_PRINTF(3, 4) void
+ sp_window_notify_user (SpWindow       *self,
+                        GtkMessageType  message_type,
+                        const gchar    *format,