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/meta-openembedded/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc/0007-kexec.c-add-guard-around-ENOTSUP.patch b/meta-openembedded/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc/0007-kexec.c-add-guard-around-ENOTSUP.patch
new file mode 100644
index 0000000..3d44683
--- /dev/null
+++ b/meta-openembedded/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc/0007-kexec.c-add-guard-around-ENOTSUP.patch
@@ -0,0 +1,37 @@
+From e6bd7a1bcfbd3e54efc81fbd7d60d915f9af0632 Mon Sep 17 00:00:00 2001
+From: Andrea Adami <andrea.adami@gmail.com>
+Date: Tue, 17 Apr 2018 11:35:14 +0200
+Subject: [PATCH] kexec.c: add guard around ENOTSUP
+
+Fix
+
+ kexec.c: In function 'main':
+ kexec.c:1515:11: error: 'ENOTSUP' undeclared
+
+Upstream-Status: Inappropriate [klibc specific]
+Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
+
+---
+ kexec/kexec.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/kexec/kexec.c b/kexec/kexec.c
+index 313d9fe..b5a8a1e 100644
+--- a/kexec/kexec.c
++++ b/kexec/kexec.c
+@@ -1501,6 +1501,7 @@ int main(int argc, char *argv[])
+ 					 */
+ 				case -EINVAL:
+ 				case -ENOEXEC:
++#ifndef __KLIBC__
+ 					 /*
+ 					  * ENOTSUP can be unsupported image
+ 					  * type or unsupported PE signature
+@@ -1513,6 +1514,7 @@ int main(int argc, char *argv[])
+ 					  * kernel bug
+ 					  */
+ 				case -ENOTSUP:
++#endif
+ 					do_kexec_file_syscall = 0;
+ 					break;
+ 			}