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-bsp/v86d/v86d/Support-for-cross-compilation.patch b/poky/meta/recipes-bsp/v86d/v86d/Support-for-cross-compilation.patch
new file mode 100644
index 0000000..15f70a5
--- /dev/null
+++ b/poky/meta/recipes-bsp/v86d/v86d/Support-for-cross-compilation.patch
@@ -0,0 +1,34 @@
+From 8eda59654fd31416164c78f6068715b01767ed4e Mon Sep 17 00:00:00 2001
+From: Serhey Popovych <serhe.popovych@gmail.com>
+Date: Wed, 31 Oct 2018 07:31:47 -0400
+Subject: v86d: Support for cross compilation
+
+It is common to build on one system for another (e.g. on IBM Power
+machine for Intel x86) where HOST_ARCH (uname -m) != TARGET_ARCH.
+
+Take TARGET_ARCH from environment if it is given, otherwise fall back
+to `uname -m`.
+
+Upstream-Status: Pending
+Signed-off-by: Serhey Popovych <serhe.popovych@gmail.com>
+---
+ configure | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/configure b/configure
+index cbbd6b3..046aa99 100755
+--- a/configure
++++ b/configure
+@@ -23,7 +23,8 @@ copt_x86emu_type="bool"
+ copt_x86emu_def=auto
+ copt_x86emu_test()
+ {
+-	local m=`uname -m`
++	local m="${TARGET_ARCH:-$(uname -m)}"
++
+ 	if [ "$m" = "i686" -o "$m" = "i586" -o "$m" = "i486" -o "$m" = "i386" ]; then
+ 		echo "n";
+ 	elif [ "$m" = "x86_64" ]; then
+-- 
+1.8.3.1
+
diff --git a/poky/meta/recipes-bsp/v86d/v86d/aarch64-host.patch b/poky/meta/recipes-bsp/v86d/v86d/aarch64-host.patch
deleted file mode 100644
index 701fed7..0000000
--- a/poky/meta/recipes-bsp/v86d/v86d/aarch64-host.patch
+++ /dev/null
@@ -1,18 +0,0 @@
-Accept aarch64 as valid build host
-
-Upstream-Status: Pending
-Signed-off-by: Khem Raj <raj.khem@gmail.com>
-
-Index: v86d-0.1.10/configure
-===================================================================
---- v86d-0.1.10.orig/configure
-+++ v86d-0.1.10/configure
-@@ -26,7 +26,7 @@ copt_x86emu_test()
- 	local m=`uname -m`
- 	if [ "$m" = "i686" -o "$m" = "i586" -o "$m" = "i486" -o "$m" = "i386" ]; then
- 		echo "n";
--	elif [ "$m" = "x86_64" ]; then
-+	elif [ "$m" = "x86_64" -o "$m" = "aarch64" ]; then
- 		echo "y";
- 	else
- 		echo "It looks like your architecture '$m' isn't supported by this version of v86d." >&2
diff --git a/poky/meta/recipes-bsp/v86d/v86d_0.1.10.bb b/poky/meta/recipes-bsp/v86d/v86d_0.1.10.bb
index f97b80d..84e27d2 100644
--- a/poky/meta/recipes-bsp/v86d/v86d_0.1.10.bb
+++ b/poky/meta/recipes-bsp/v86d/v86d_0.1.10.bb
@@ -12,7 +12,7 @@
 SRC_URI = "http://snapshot.debian.org/archive/debian/20110427T035506Z/pool/main/v/${BPN}/${BPN}_${PV}.orig.tar.gz \
            file://Update-x86emu-from-X.org.patch \
            file://ar-from-env.patch \
-           file://aarch64-host.patch \
+           file://Support-for-cross-compilation.patch \
 "
 
 SRC_URI[md5sum] = "889686ec8424468fe0d205742e77a4c2"
@@ -22,7 +22,7 @@
 COMPATIBLE_HOST = '(i.86|x86_64).*-linux'
 
 do_configure () {
-	./configure --with-x86emu
+	TARGET_ARCH="${TARGET_ARCH}" ./configure --with-x86emu
 }
 
 do_compile () {