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/lib/oeqa/selftest/cases/imagefeatures.py b/poky/meta/lib/oeqa/selftest/cases/imagefeatures.py
index 09e0b20..8c95432 100644
--- a/poky/meta/lib/oeqa/selftest/cases/imagefeatures.py
+++ b/poky/meta/lib/oeqa/selftest/cases/imagefeatures.py
@@ -10,8 +10,6 @@
     test_user = 'tester'
     root_user = 'root'
 
-    buffer = True
-
     @OETestID(1107)
     def test_non_root_user_can_connect_via_ssh_without_password(self):
         """
@@ -23,7 +21,7 @@
         AutomatedBy: Daniel Istrate <daniel.alexandrux.istrate@intel.com>
         """
 
-        features = 'EXTRA_IMAGE_FEATURES = "ssh-server-openssh empty-root-password allow-empty-password"\n'
+        features = 'EXTRA_IMAGE_FEATURES = "ssh-server-openssh empty-root-password allow-empty-password allow-root-login"\n'
         features += 'INHERIT += "extrausers"\n'
         features += 'EXTRA_USERS_PARAMS = "useradd -p \'\' {}; usermod -s /bin/sh {};"'.format(self.test_user, self.test_user)
         self.write_config(features)
@@ -49,7 +47,7 @@
         AutomatedBy: Daniel Istrate <daniel.alexandrux.istrate@intel.com>
         """
 
-        features = 'EXTRA_IMAGE_FEATURES = "ssh-server-openssh allow-empty-password"\n'
+        features = 'EXTRA_IMAGE_FEATURES = "ssh-server-openssh allow-empty-password allow-root-login"\n'
         features += 'INHERIT += "extrausers"\n'
         features += 'EXTRA_USERS_PARAMS = "useradd -p \'\' {}; usermod -s /bin/sh {};"'.format(self.test_user, self.test_user)
         self.write_config(features)