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-support/apr/apr/0008-apr-fix-ptest-hang-in-teststr.patch b/poky/meta/recipes-support/apr/apr/0008-apr-fix-ptest-hang-in-teststr.patch
new file mode 100644
index 0000000..6809fa6
--- /dev/null
+++ b/poky/meta/recipes-support/apr/apr/0008-apr-fix-ptest-hang-in-teststr.patch
@@ -0,0 +1,32 @@
+From 036f90748247417dbfa714b1b912ca7dd4053f04 Mon Sep 17 00:00:00 2001
+From: Changqing Li <changqing.li@windriver.com>
+Date: Mon, 23 Jul 2018 14:12:35 +0800
+Subject: [PATCH] apr: fix ptest hang in teststr
+
+ptest hang in teststr since turns into a non-terminating loop,
+fix by below backported patch.
+
+Upstream-Status: Backport[https://github.com/apache/apr/commit/
+         2e8fbff4ecf82d0decf6baf774c209948f2f4998?diff=unified]
+
+Signed-off-by: Changqing Li <changqing.li@windriver.com>
+---
+ test/teststr.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/test/teststr.c b/test/teststr.c
+index d9a5054..951a830 100644
+--- a/test/teststr.c
++++ b/test/teststr.c
+@@ -307,7 +307,7 @@ static void overflow_strfsize(abts_case *tc, void *data)
+     for (; off < 999999999; off += 999) {
+         apr_strfsize(off, buf);
+     }
+-    for (off = 1; off < LONG_MAX && off > 0; off *= 2) {
++    for (off = LONG_MAX; off > 1; off /= 2) {
+         apr_strfsize(off, buf);
+         apr_strfsize(off + 1, buf);
+         apr_strfsize(off - 1, buf);
+-- 
+2.7.4
+
diff --git a/poky/meta/recipes-support/apr/apr_1.6.3.bb b/poky/meta/recipes-support/apr/apr_1.6.3.bb
index 7563a38..7bfb698 100644
--- a/poky/meta/recipes-support/apr/apr_1.6.3.bb
+++ b/poky/meta/recipes-support/apr/apr_1.6.3.bb
@@ -18,6 +18,7 @@
            file://0005-configure.in-fix-LTFLAGS-to-make-it-work-with-ccache.patch \
            file://0006-apr-fix-off_t-size-doesn-t-match-in-glibc-when-cross.patch \
            file://0007-explicitly-link-libapr-against-phtread-to-make-gold-.patch \
+           file://0008-apr-fix-ptest-hang-in-teststr.patch \
 "
 
 SRC_URI[md5sum] = "12f2a349483ad6f12db49ba01fbfdbfa"