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-extended/mdadm/files/0001-use-memmove-instead-of-memcpy-on-overlapping-region.patch b/poky/meta/recipes-extended/mdadm/files/0001-use-memmove-instead-of-memcpy-on-overlapping-region.patch
new file mode 100644
index 0000000..44351b6
--- /dev/null
+++ b/poky/meta/recipes-extended/mdadm/files/0001-use-memmove-instead-of-memcpy-on-overlapping-region.patch
@@ -0,0 +1,31 @@
+From ab18f04cf89ef4e8521c81c50477e1363b2d333b Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Sat, 28 Apr 2018 09:46:12 -0700
+Subject: [PATCH] use memmove instead of memcpy on overlapping region
+
+Fixes
+super0.c:526:3: error: 'memcpy' accessing 3936 bytes at offsets 156 and 160 overlaps 3932 bytes at offset 160 [-Werror=restrict]
+
+Upstream-Status: Pending
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ super0.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/super0.c b/super0.c
+index f5b4507..264b598 100644
+--- a/super0.c
++++ b/super0.c
+@@ -523,7 +523,7 @@ static int update_super0(struct supertype *st, struct mdinfo *info,
+ 		 * up 4 bytes before continuing
+ 		 */
+ 		__u32 *sb32 = (__u32*)sb;
+-		memcpy(sb32+MD_SB_GENERIC_CONSTANT_WORDS+7,
++		memmove(sb32+MD_SB_GENERIC_CONSTANT_WORDS+7,
+ 		       sb32+MD_SB_GENERIC_CONSTANT_WORDS+7+1,
+ 		       (MD_SB_WORDS - (MD_SB_GENERIC_CONSTANT_WORDS+7+1))*4);
+ 		if (verbose >= 0)
+-- 
+2.17.0
+