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/meta-openembedded/meta-networking/recipes-daemons/opensaf/opensaf/0001-Catch-std-ifstream-failure-by-reference.patch b/meta-openembedded/meta-networking/recipes-daemons/opensaf/opensaf/0001-Catch-std-ifstream-failure-by-reference.patch
new file mode 100644
index 0000000..30fdb8b
--- /dev/null
+++ b/meta-openembedded/meta-networking/recipes-daemons/opensaf/opensaf/0001-Catch-std-ifstream-failure-by-reference.patch
@@ -0,0 +1,67 @@
+From 38c5343f84799fc5041575f3ec808f7476b6eea3 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 16 Apr 2018 14:33:35 -0700
+Subject: [PATCH] Catch std::ifstream::failure by reference
+
+Fixes
+error: catching polymorphic type 'class std::ios_base::failure' by value
+[-Werror=catch-value=]
+   } catch (std::ofstream::failure) {
+                           ^~~~~~~
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+---
+ src/base/conf.cc           | 4 ++--
+ src/dtm/dtmnd/dtm_main.cc  | 2 +-
+ src/dtm/dtmnd/multicast.cc | 2 +-
+ 3 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/src/base/conf.cc b/src/base/conf.cc
+index d5755a1..4820357 100644
+--- a/src/base/conf.cc
++++ b/src/base/conf.cc
+@@ -189,7 +189,7 @@ std::string Conf::ReadFile(const std::string& path_name,
+   try {
+     str.open(path_name);
+     str >> contents;
+-  } catch (std::ifstream::failure) {
++  } catch (std::ifstream::failure& e) {
+     contents.clear();
+   }
+   return (str.fail() || contents.empty()) ? default_contents : contents;
+@@ -203,7 +203,7 @@ void Conf::WriteFileAtomically(const std::string& path_name,
+   try {
+     str.open(tmp_file, std::ofstream::out | std::ofstream::trunc);
+     str << contents << std::endl;
+-  } catch (std::ofstream::failure) {
++  } catch (std::ofstream::failure& e) {
+     success = false;
+   }
+   str.close();
+diff --git a/src/dtm/dtmnd/dtm_main.cc b/src/dtm/dtmnd/dtm_main.cc
+index 585e11e..5cf6ad7 100644
+--- a/src/dtm/dtmnd/dtm_main.cc
++++ b/src/dtm/dtmnd/dtm_main.cc
+@@ -367,7 +367,7 @@ void UpdateNodeIdFile(DTM_INTERNODE_CB *cb) {
+       try {
+         str.open(PKGLOCALSTATEDIR "/node_id", std::ofstream::out);
+         str << std::hex << node_id << std::endl;
+-      } catch (std::ofstream::failure) {
++      } catch (std::ofstream::failure& e) {
+       }
+       str.close();
+     }
+diff --git a/src/dtm/dtmnd/multicast.cc b/src/dtm/dtmnd/multicast.cc
+index cadc002..7c25fea 100644
+--- a/src/dtm/dtmnd/multicast.cc
++++ b/src/dtm/dtmnd/multicast.cc
+@@ -199,7 +199,7 @@ bool Multicast::GetPeersFromFile(const std::string &path_name) {
+         }
+       }
+     }
+-  } catch (std::ifstream::failure) {
++  } catch (std::ifstream::failure& e) {
+     LOG_ER("Caught std::ifstream::failure when reading file '%s', peers=%zu",
+            path_name.c_str(), static_cast<size_t>(peers_.size()));
+     peers_.clear();