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/gcc/gcc-8.2/0035-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch b/poky/meta/recipes-devtools/gcc/gcc-8.2/0035-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch
new file mode 100644
index 0000000..5e416e0
--- /dev/null
+++ b/poky/meta/recipes-devtools/gcc/gcc-8.2/0035-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch
@@ -0,0 +1,29 @@
+From 775c7fafcbfebed2d4bd8a6a011f18f70f3b59d3 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 4 May 2016 21:11:34 -0700
+Subject: [PATCH 35/39] Link libgcc using LDFLAGS, not just SHLIB_LDFLAGS
+
+Upstream-Status: Pending
+
+Signed-off-by: Christopher Larson <chris_larson@mentor.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ libgcc/config/t-slibgcc | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/libgcc/config/t-slibgcc b/libgcc/config/t-slibgcc
+index 7e60b621a2d..ea22ede3361 100644
+--- a/libgcc/config/t-slibgcc
++++ b/libgcc/config/t-slibgcc
+@@ -32,7 +32,7 @@ SHLIB_INSTALL_SOLINK = $(LN_S) $(SHLIB_SONAME) \
+ 	$(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)
+ 
+ SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) -shared -nodefaultlibs \
+-	$(SHLIB_LDFLAGS) \
++	$(LDFLAGS) $(SHLIB_LDFLAGS) \
+ 	-o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp @multilib_flags@ \
+ 	$(SHLIB_OBJS) $(SHLIB_LC) && \
+ 	rm -f $(SHLIB_DIR)/$(SHLIB_SOLINK) && \
+-- 
+2.17.0
+