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-oe/recipes-support/cpprest/cpprest/disable-test-timeouts.patch b/meta-openembedded/meta-oe/recipes-support/cpprest/cpprest/disable-test-timeouts.patch
new file mode 100644
index 0000000..93c3e8a
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-support/cpprest/cpprest/disable-test-timeouts.patch
@@ -0,0 +1,103 @@
+Description: Some tests takes too long on slow architectures and timeouts
+ We can safely disable them.
+ e.g.
+ Release/tests/functional/http/client/connections_and_errors.cpp:142: error: Failure in request_timeout_microsecond: Test case timed out and is hung. Aborting all remaining test cases. Expected under 180000ms. FAILED
+
+Index: casablanca/Release/tests/functional/http/client/connections_and_errors.cpp
+===================================================================
+--- casablanca.orig/Release/tests/functional/http/client/connections_and_errors.cpp
++++ casablanca/Release/tests/functional/http/client/connections_and_errors.cpp
+@@ -127,7 +127,7 @@
+     // Try sending another request.
+     VERIFY_THROWS(client.request(methods::GET).wait(), web::http::http_exception);
+ }
+-
++/*
+ TEST_FIXTURE(uri_address, request_timeout)
+ {
+     test_http_server::scoped_server scoped(m_uri);
+@@ -146,7 +146,8 @@
+ #endif
+     t.get();
+ }
+-
++*/
++/*
+ TEST_FIXTURE(uri_address, request_timeout_microsecond)
+ {
+     pplx::task<test_request*> t;
+@@ -168,7 +169,7 @@
+     try { t.get(); }
+     catch (...) {}
+ }
+-
++*/
+ TEST_FIXTURE(uri_address, invalid_method)
+ {
+     web::http::uri uri(U("http://www.bing.com/"));
+Index: casablanca/Release/tests/functional/http/listener/requests_tests.cpp
+===================================================================
+--- casablanca.orig/Release/tests/functional/http/listener/requests_tests.cpp
++++ casablanca/Release/tests/functional/http/listener/requests_tests.cpp
+@@ -173,7 +173,7 @@
+ 
+     listener.close().wait();
+ }
+-
++/*
+ TEST_FIXTURE(uri_address, response_order)
+ {
+     http_listener listener(m_uri);
+@@ -217,7 +217,7 @@
+ 
+     listener.close().wait();
+ }
+-
++*/
+ TEST_FIXTURE(uri_address, uri_encoding, "Ignore", "Codeplex 201")
+ {
+     http_listener listener(m_uri);
+Index: casablanca/Release/tests/functional/websockets/client/authentication_tests.cpp
+===================================================================
+--- casablanca.orig/Release/tests/functional/websockets/client/authentication_tests.cpp
++++ casablanca/Release/tests/functional/websockets/client/authentication_tests.cpp
+@@ -221,7 +221,7 @@
+         VERIFY_ARE_EQUAL("TLS handshake failed", e.error_code().message());
+     }
+ }
+-
++/*
+ TEST(self_signed_cert)
+ {
+     handshake_error_test_impl(U("wss://self-signed.badssl.com/"));
+@@ -236,7 +236,7 @@
+ {
+     handshake_error_test_impl(U("wss://expired.badssl.com/"));
+ }
+-
++*/
+ #endif
+ 
+ } // SUITE(authentication_tests)
+Index: casablanca/Release/tests/functional/websockets/client/client_construction.cpp
+===================================================================
+--- casablanca.orig/Release/tests/functional/websockets/client/client_construction.cpp
++++ casablanca/Release/tests/functional/websockets/client/client_construction.cpp
+@@ -81,7 +81,7 @@
+     VERIFY_ARE_EQUAL(config2.credentials().username(), cred.username());
+ }
+ 
+-
++/*
+ // Verify that we can get the baseuri from websocket_client connect.
+ TEST_FIXTURE(uri_address, uri_test)
+ {
+@@ -101,7 +101,7 @@
+     VERIFY_ARE_EQUAL(client2.uri(), m_uri);
+     client2.close().wait();
+ }
+-
++*/
+ TEST_FIXTURE(uri_address, move_operations)
+ {
+     std::string body("hello");