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-perl/recipes-perl/libnet/libnet-ssleay-perl/no-exec-on-configure.patch b/meta-openembedded/meta-perl/recipes-perl/libnet/libnet-ssleay-perl/no-exec-on-configure.patch
new file mode 100644
index 0000000..6efa7d8
--- /dev/null
+++ b/meta-openembedded/meta-perl/recipes-perl/libnet/libnet-ssleay-perl/no-exec-on-configure.patch
@@ -0,0 +1,33 @@
+--- a/inc/Module/Install/PRIVATE/Net/SSLeay.pm	2018-08-27 14:56:24.788544991 +0200
++++ b/inc/Module/Install/PRIVATE/Net/SSLeay.pm	2018-08-27 15:00:12.847266331 +0200
+@@ -24,20 +24,7 @@
+     $self->requires_external_cc;
+ 
+     my $prefix = $self->find_openssl_prefix;
+-    my $exec   = $self->find_openssl_exec($prefix);
+-
+-    unless (-x $exec) {
+-        print <<EOM;
+-*** Could not find OpenSSL
+-    If it's already installed, please set the OPENSSL_PREFIX environment
+-    variable accordingly. If it isn't installed yet, get the latest version
+-    from http://www.openssl.org/.
+-EOM
+-        exit 0; # according http://wiki.cpantesters.org/wiki/CPANAuthorNotes this is best-practice when "missing library"
+-    }
+-
+-    $self->check_openssl_version($prefix, $exec);
+-    my $opts = $self->ssleay_get_build_opts($prefix, $exec);
++    my $opts = $self->ssleay_get_build_opts($prefix);
+ 
+     $self->makemaker_args(
+         CCCDLFLAGS => $opts->{cccdlflags},
+@@ -58,7 +45,7 @@
+ }
+ 
+ sub ssleay_get_build_opts {
+-    my ($self, $prefix, $exec) = @_;
++    my ($self, $prefix) = @_;
+ 
+     my $opts = {
+         lib_links  => [],