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/0011-purgatory-Makefile-adapt-to-klcc.patch b/meta-openembedded/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc/0011-purgatory-Makefile-adapt-to-klcc.patch
new file mode 100644
index 0000000..636151b
--- /dev/null
+++ b/meta-openembedded/meta-initramfs/recipes-kernel/kexec/kexec-tools-klibc/0011-purgatory-Makefile-adapt-to-klcc.patch
@@ -0,0 +1,38 @@
+From 9b6866b106eb3ad11115bd591a23e65a68dd847d Mon Sep 17 00:00:00 2001
+From: Andrea Adami <andrea.adami@gmail.com>
+Date: Tue, 21 Aug 2018 16:31:44 +0200
+Subject: [PATCH 11/11] purgatory Makefile: adapt to klcc
+
+Upstream-Status: Inappropriate [klibc specific]
+Signed-off-by: Andrea Adami <andrea.adami@gmail.com>
+---
+ purgatory/Makefile | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/purgatory/Makefile b/purgatory/Makefile
+index 49ce80a..72eefaa 100644
+--- a/purgatory/Makefile
++++ b/purgatory/Makefile
+@@ -47,7 +47,7 @@ purgatory/sha256.o: $(srcdir)/util_lib/sha256.c
+ $(PURGATORY): CC=$(TARGET_CC)
+ $(PURGATORY): CFLAGS+=$(PURGATORY_EXTRA_CFLAGS) \
+ 		      $($(ARCH)_PURGATORY_EXTRA_CFLAGS) \
+-		      -Os -fno-builtin -ffreestanding \
++		      -Os -fno-builtin -ffreestanding -nostdinc \
+ 		      -fno-zero-initialized-in-bss \
+ 		      -fno-PIC -fno-PIE -fno-stack-protector
+ 
+@@ -59,8 +59,8 @@ $(PURGATORY): CPPFLAGS=$($(ARCH)_PURGATORY_EXTRA_CFLAGS) \
+ 			-Iinclude \
+ 			-I$(shell $(CC) -print-file-name=include)
+ $(PURGATORY): LDFLAGS=$($(ARCH)_PURGATORY_EXTRA_CFLAGS)\
+-			-Wl,--no-undefined -nostartfiles -nostdlib \
+-			-nodefaultlibs -e purgatory_start -r \
++			-Wl,--no-undefined -Wl,-no-pie -Wl,-nostartfiles -Wl,-nostdlib \
++			-Wl,-nodefaultlibs -Wl,--entry=purgatory_start -Wl,-r \
+ 			-Wl,-Map=$(PURGATORY_MAP)
+ 
+ $(PURGATORY): $(PURGATORY_OBJS)
+-- 
+2.7.4
+