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-core/dropbear/dropbear/0006-dropbear-configuration-file.patch b/poky/meta/recipes-core/dropbear/dropbear/0006-dropbear-configuration-file.patch
index fa4c8d0..deed78f 100644
--- a/poky/meta/recipes-core/dropbear/dropbear/0006-dropbear-configuration-file.patch
+++ b/poky/meta/recipes-core/dropbear/dropbear/0006-dropbear-configuration-file.patch
@@ -1,4 +1,7 @@
-Subject: [PATCH 6/6] dropbear configuration file
+From e3a5db1b6d3f6382a15b2266458c26c645a10f18 Mon Sep 17 00:00:00 2001
+From: Mingli Yu <Mingli.Yu@windriver.com>
+Date: Thu, 6 Sep 2018 15:54:00 +0800
+Subject: [PATCH] dropbear configuration file
 
 dropbear: Change the path ("/etc/pam.d/sshd" as default) to find a pam configuration file \
 to "/etc/pam.d/dropbear for dropbear when enabling pam supporting"
@@ -7,12 +10,17 @@
 
 Signed-off-by: Maxin B. John <maxin.john@enea.com>
 Signed-off-by: Xiaofeng Yan <xiaofeng.yan@windriver.com>
+Signed-off-by: Mingli Yu <Mingli.Yu@windriver.com>
 ---
-diff -Naur dropbear-2013.60-orig/svr-authpam.c dropbear-2013.60/svr-authpam.c
---- dropbear-2013.60-orig/svr-authpam.c	2013-10-16 16:34:53.000000000 +0200
-+++ dropbear-2013.60/svr-authpam.c	2013-10-21 17:04:04.969416055 +0200
-@@ -211,7 +211,7 @@
- 	userData.passwd = password;
+ svr-authpam.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/svr-authpam.c b/svr-authpam.c
+index d201bc9..165ec5c 100644
+--- a/svr-authpam.c
++++ b/svr-authpam.c
+@@ -223,7 +223,7 @@ void svr_auth_pam(int valid_user) {
+ 	}
  
  	/* Init pam */
 -	if ((rc = pam_start("sshd", NULL, &pamConv, &pamHandlep)) != PAM_SUCCESS) {
@@ -20,3 +28,6 @@
  		dropbear_log(LOG_WARNING, "pam_start() failed, rc=%d, %s", 
  				rc, pam_strerror(pamHandlep, rc));
  		goto cleanup;
+-- 
+2.7.4
+