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-float-tests.patch b/meta-openembedded/meta-oe/recipes-support/cpprest/cpprest/disable-float-tests.patch
new file mode 100644
index 0000000..75f74ec
--- /dev/null
+++ b/meta-openembedded/meta-oe/recipes-support/cpprest/cpprest/disable-float-tests.patch
@@ -0,0 +1,25 @@
+Description: new toolchain might have increased the float precision
+Author: Gianfranco Costamagna <locutusofborg@debian.org>
+Last-Update: 2017-10-28
+Forwarded: https://github.com/Microsoft/cpprestsdk/issues/576
+
+--- casablanca-2.10.0.orig/Release/tests/functional/streams/istream_tests.cpp
++++ casablanca-2.10.0/Release/tests/functional/streams/istream_tests.cpp
+@@ -1302,7 +1302,7 @@ void compare_float(float expected, float
+ {
+     compare_floating(expected, actual, FLT_EPSILON);
+ }
+-
++/*
+ TEST(extract_floating_point)
+ {
+     std::string test_string;
+@@ -1349,7 +1349,7 @@ TEST(extract_floating_point)
+             VERIFY_ARE_EQUAL(1 / expected, 1 / actual);
+     } while (!std_istream.eof());
+ }
+-
++*/
+ TEST(extract_floating_point_with_exceptions)
+ {
+     std::vector<std::pair<std::string, std::string>> tests;