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-multimedia/ffmpeg/ffmpeg/CVE-2018-15822.patch b/poky/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2018-15822.patch
new file mode 100644
index 0000000..7d5868a
--- /dev/null
+++ b/poky/meta/recipes-multimedia/ffmpeg/ffmpeg/CVE-2018-15822.patch
@@ -0,0 +1,37 @@
+From 6b67d7f05918f7a1ee8fc6ff21355d7e8736aa10 Mon Sep 17 00:00:00 2001
+From: Michael Niedermayer <michael@niedermayer.cc>
+Date: Sat, 28 Jul 2018 15:03:50 +0200
+Subject: [PATCH] avformat/flvenc: Check audio packet size
+
+Fixes: Assertion failure
+Fixes: assert_flvenc.c:941_1.swf
+
+Upstream-Status: Backport [https://github.com/FFmpeg/FFmpeg/commit/6b67d7f05918f7a1ee8fc6ff21355d7e8736aa10]
+CVE: CVE-2018-15822
+
+Found-by: #CHEN HONGXU# <HCHEN017@e.ntu.edu.sg>
+Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
+Signed-off-by: Mingli Yu <Mingli.Yu@windriver.com>
+---
+ libavformat/flvenc.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
+index 1c552a3e6b..e4863f1fc7 100644
+--- a/libavformat/flvenc.c
++++ b/libavformat/flvenc.c
+@@ -883,6 +883,11 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
+     int flags = -1, flags_size, ret;
+     int64_t cur_offset = avio_tell(pb);
+ 
++    if (par->codec_type == AVMEDIA_TYPE_AUDIO && !pkt->size) {
++        av_log(s, AV_LOG_WARNING, "Empty audio Packet\n");
++        return AVERROR(EINVAL);
++    }
++
+     if (par->codec_id == AV_CODEC_ID_VP6F || par->codec_id == AV_CODEC_ID_VP6A ||
+         par->codec_id == AV_CODEC_ID_VP6  || par->codec_id == AV_CODEC_ID_AAC)
+         flags_size = 2;
+-- 
+2.17.1
+