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-graphics/vulkan/vulkan-demos/0001-Don-t-build-demos-with-questionably-licensed-data.patch b/poky/meta/recipes-graphics/vulkan/vulkan-demos/0001-Don-t-build-demos-with-questionably-licensed-data.patch
index d32c8f2..93bcfbf 100644
--- a/poky/meta/recipes-graphics/vulkan/vulkan-demos/0001-Don-t-build-demos-with-questionably-licensed-data.patch
+++ b/poky/meta/recipes-graphics/vulkan/vulkan-demos/0001-Don-t-build-demos-with-questionably-licensed-data.patch
@@ -1,6 +1,6 @@
-From 55770fb07c42fe410cf8d09f8f5976babc89b9ef Mon Sep 17 00:00:00 2001
-From: Jussi Kukkonen <jussi.kukkonen@intel.com>
-Date: Tue, 4 Jul 2017 17:13:45 +0300
+From 0a27144d43b70121f57f6036514d069ca9d2b971 Mon Sep 17 00:00:00 2001
+From: "Maxin B. John" <maxin.john@intel.com>
+Date: Mon, 30 Jul 2018 17:23:29 +0300
 Subject: [PATCH] Don't build demos with questionably licensed data
 
 Some of the models don't have open source compatible licenses:
@@ -9,43 +9,46 @@
 
 ssao:
 scenerendering:
-	Sibenik model, no license found
+        Sibenik model, no license found
 
 deferred:
 deferredmultisampling:
 deferredshadows:
-	armor model, CC-BY-3.0
+        armor model, CC-BY-3.0
 
 vulkanscene:
 imgui:
 shadowmapping:
-	vulkanscene model, no license found
+        vulkanscene model, no license found
 
 indirectdraw:
-	plant model, no license found
+        plant model, no license found
 
 hdr:
 pbribl:
 pbrtexture:
-	Require external Vulkan Asset Pack
+        Require external Vulkan Asset Pack
 
 Upstream-Status: Inappropriate [configuration]
-Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
----
- CMakeLists.txt | 13 -------------
- 1 file changed, 13 deletions(-)
 
-diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 4958fff..0f9d3e4 100644
---- a/CMakeLists.txt
-+++ b/CMakeLists.txt
-@@ -150,17 +150,11 @@ set(EXAMPLES
- 	computeparticles
+Signed-off-by: Jussi Kukkonen <jussi.kukkonen@intel.com>
+Signed-off-by: Maxin B. John <maxin.john@intel.com>
+---
+ examples/CMakeLists.txt | 14 --------------
+ 1 file changed, 14 deletions(-)
+
+diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
+index 8eee3a4..698d3b3 100644
+--- a/examples/CMakeLists.txt
++++ b/examples/CMakeLists.txt
+@@ -47,18 +47,12 @@ set(EXAMPLES
  	computeshader
+ 	conservativeraster
  	debugmarker
 -	deferred
 -	deferredmultisampling
 -	deferredshadows
+ 	descriptorsets
  	displacement
  	distancefieldfonts
  	dynamicuniformbuffer
@@ -53,32 +56,36 @@
  	geometryshader
 -	hdr
 -	imgui
--	indirectdraw	
+-	indirectdraw
+ 	inputattachments
  	instancing
  	mesh
- 	multisampling
-@@ -170,20 +164,14 @@ set(EXAMPLES
+@@ -70,8 +64,6 @@ set(EXAMPLES
  	parallaxmapping
  	particlefire
  	pbrbasic
 -	pbribl
 -	pbrtexture
  	pipelines
+ 	pipelinestatistics
  	pushconstants
+@@ -79,15 +71,10 @@ set(EXAMPLES
  	radialblur
  	raytracing
+ 	renderheadless
 -	scenerendering
  	screenshot
 -	shadowmapping
 -	shadowmappingomni
+-	shadowmappingcascade
  	skeletalanimation
  	specializationconstants
  	sphericalenvmapping
 -	ssao
+ 	stencilbuffer
  	subpasses
  	terraintessellation
- 	tessellation
-@@ -196,7 +184,6 @@ set(EXAMPLES
+@@ -101,7 +88,6 @@ set(EXAMPLES
  	texturesparseresidency
  	triangle
  	viewportarray
@@ -87,5 +94,5 @@
  
  buildExamples()
 -- 
-2.13.2
+2.4.0