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/go/go-1.11/0001-allow-CC-and-CXX-to-have-multiple-words.patch b/poky/meta/recipes-devtools/go/go-1.11/0001-allow-CC-and-CXX-to-have-multiple-words.patch
new file mode 100644
index 0000000..4442858
--- /dev/null
+++ b/poky/meta/recipes-devtools/go/go-1.11/0001-allow-CC-and-CXX-to-have-multiple-words.patch
@@ -0,0 +1,31 @@
+From 7cc519aa5f84cf8fc7ac8c10fc69aa8040330ea0 Mon Sep 17 00:00:00 2001
+From: Matt Madison <matt@madison.systems>
+Date: Mon, 19 Feb 2018 08:49:33 -0800
+Subject: [PATCH] allow CC and CXX to have multiple words
+
+Upstream-Status: Inappropriate [OE specific]
+
+Signed-off-by: Matt Madison <matt@madison.systems>
+
+---
+ src/cmd/go/internal/envcmd/env.go | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/src/cmd/go/internal/envcmd/env.go b/src/cmd/go/internal/envcmd/env.go
+index afadbad..cedbfbf 100644
+--- a/src/cmd/go/internal/envcmd/env.go
++++ b/src/cmd/go/internal/envcmd/env.go
+@@ -85,11 +85,11 @@ func MkEnv() []cfg.EnvVar {
+ 
+ 	cc := cfg.DefaultCC(cfg.Goos, cfg.Goarch)
+ 	if env := strings.Fields(os.Getenv("CC")); len(env) > 0 {
+-		cc = env[0]
++		cc = strings.Join(env, " ")
+ 	}
+ 	cxx := cfg.DefaultCXX(cfg.Goos, cfg.Goarch)
+ 	if env := strings.Fields(os.Getenv("CXX")); len(env) > 0 {
+-		cxx = env[0]
++		cxx = strings.Join(env, " ")
+ 	}
+ 	env = append(env, cfg.EnvVar{Name: "CC", Value: cc})
+ 	env = append(env, cfg.EnvVar{Name: "CXX", Value: cxx})