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/valgrind/valgrind/0002-context-APIs-are-not-available-on-musl.patch b/poky/meta/recipes-devtools/valgrind/valgrind/0002-context-APIs-are-not-available-on-musl.patch
index 3f9f33b4..480fe33 100644
--- a/poky/meta/recipes-devtools/valgrind/valgrind/0002-context-APIs-are-not-available-on-musl.patch
+++ b/poky/meta/recipes-devtools/valgrind/valgrind/0002-context-APIs-are-not-available-on-musl.patch
@@ -1,17 +1,20 @@
-From 862b807076d57f2f58ed9d572ddac8bb402774a2 Mon Sep 17 00:00:00 2001
-From: Khem Raj <raj.khem@gmail.com>
-Date: Sat, 10 Jun 2017 01:01:10 -0700
-Subject: [PATCH 2/6] context APIs are not available on musl
+From bd4e926e7e14747b3cd4d7b2a1bd5410b22f3ea2 Mon Sep 17 00:00:00 2001
+From: Randy MacLeod <Randy.MacLeod@windriver.com>
+Date: Tue, 16 Oct 2018 21:27:46 -0400
+Subject: [PATCH] context APIs are not available on musl
 
 Upstream-Status: Pending
 
+Updated patch for valgrind-3.14
+
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Signed-off-by: Randy MacLeod <Randy.MacLeod@windriver.com>
 ---
  memcheck/tests/linux/stack_changes.c | 7 ++++++-
  1 file changed, 6 insertions(+), 1 deletion(-)
 
 diff --git a/memcheck/tests/linux/stack_changes.c b/memcheck/tests/linux/stack_changes.c
-index a978fc2..ffb49c6 100644
+index 7f97b90a5..a26cb4ae6 100644
 --- a/memcheck/tests/linux/stack_changes.c
 +++ b/memcheck/tests/linux/stack_changes.c
 @@ -10,6 +10,7 @@
@@ -19,7 +22,7 @@
  // checks that Valgrind notices their stack changes properly.
  
 +#ifdef __GLIBC__
- typedef  struct ucontext  mycontext;
+ typedef  ucontext_t  mycontext;
  
  mycontext ctx1, ctx2, oldc;
 @@ -51,9 +52,11 @@ int init_context(mycontext *uc)
@@ -45,5 +48,5 @@
      return 0;
  }
 -- 
-2.13.1
+2.17.0