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/conf/machine/include/mips/tune-mips-74k.inc b/poky/meta/conf/machine/include/mips/tune-mips-74k.inc
new file mode 100644
index 0000000..94afee3
--- /dev/null
+++ b/poky/meta/conf/machine/include/mips/tune-mips-74k.inc
@@ -0,0 +1,37 @@
+DEFAULTTUNE ?= "mips32r2-74kc"
+
+MIPSPKGSFX_MIPS16E ??= ""
+
+require conf/machine/include/tune-mips32r2.inc
+require conf/machine/include/mips/feature-mips-mips16e.inc
+
+
+TUNEVALID[74kc] = "Enable MIPS 74K with DSPr2 processor optimizations"
+TUNE_CCARGS .= "${@bb.utils.contains("TUNE_FEATURES", "74kc", " -mtune=74kc", "", d)}"
+
+AVAILTUNES += "mips32r2-74kc mips32r2-74kc-m16"
+AVAILTUNES += "mips32r2el-74kc mips32r2el-74kc-m16"
+
+# big endian: kc+dsp2=kc, kc+dsp2+mips16e=kc-m16
+TUNE_FEATURES_tune-mips32r2-74kc = "${TUNE_FEATURES_tune-mips32r2-nf} 74kc"
+TUNE_FEATURES_tune-mips32r2-74kc-m16 = "${TUNE_FEATURES_tune-mips32r2-74kc} mips16e"
+
+MIPSPKGSFX_VARIANT_tune-mips32r2-74kc = "mips32r2-74kc"
+PACKAGE_EXTRA_ARCHS_tune-mips32r2-74kc = "${PACKAGE_EXTRA_ARCHS_tune-mips32r2-nf} mips32r2-74kc-nf"
+QEMU_EXTRAOPTIONS_mips32r2-74kc-nf = " -cpu 24Kc"
+
+MIPSPKGSFX_VARIANT_tune-mips32r2-74kc-m16 = "mips32r2-74kc${MIPSPKGSFX_MIPS16E}"
+PACKAGE_EXTRA_ARCHS_tune-mips32r2-74kc-m16 = "${PACKAGE_EXTRA_ARCHS_tune-mips32r2-74kc} mips32r2-74kc-m16-nf"
+QEMU_EXTRAOPTIONS_mips32r2-74kc-m16-nf = " -cpu 24KEc"
+
+# little endian: kc+dsp2=kc, kc+dsp2+mips16e=kc-m16
+TUNE_FEATURES_tune-mips32r2el-74kc = "${TUNE_FEATURES_tune-mips32r2el-nf} 74kc"
+TUNE_FEATURES_tune-mips32r2el-74kc-m16 = "${TUNE_FEATURES_tune-mips32r2el-74kc} mips16e"
+
+MIPSPKGSFX_VARIANT_tune-mips32r2el-74kc = "mips32r2el-74kc"
+PACKAGE_EXTRA_ARCHS_tune-mips32r2el-74kc = "${PACKAGE_EXTRA_ARCHS_tune-mips32r2el-nf} mips32r2el-74kc-nf"
+QEMU_EXTRAOPTIONS_mips32r2el-74kc-nf = " -cpu 24Kc"
+
+MIPSPKGSFX_VARIANT_tune-mips32r2el-74kc-m16 = "mips32r2el-74kc${MIPSPKGSFX_MIPS16E}"
+PACKAGE_EXTRA_ARCHS_tune-mips32r2el-74kc-m16 = "${PACKAGE_EXTRA_ARCHS_tune-mips32r2el-74kc} mips32r2el-74kc-m16-nf"
+QEMU_EXTRAOPTIONS_mips32r2el-74kc-m16-nf = " -cpu 24KEc"