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/tune-corei7.inc b/poky/meta/conf/machine/include/tune-corei7.inc
index 6edfb68..d06af47 100644
--- a/poky/meta/conf/machine/include/tune-corei7.inc
+++ b/poky/meta/conf/machine/include/tune-corei7.inc
@@ -1,20 +1,19 @@
-# Settings for the GCC(1) cpu-type "corei7":
+# Settings for the GCC(1) cpu-type "nehalem":
 #
-#     Intel Core i7 CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1
-#     and SSE4.2 instruction set support.
+#     Intel Nehalem CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
+#     SSE4.2 and POPCNT instruction set support.
 #
 # This tune is recommended for Intel Nehalem and Silvermont (e.g. Bay Trail) CPUs
 # (and beyond).
 #
 DEFAULTTUNE ?= "corei7-64"
 
-# Pull in the previous tune in to pull in PACKAGE_EXTRA_ARCHS
+# Include the previous tune to pull in PACKAGE_EXTRA_ARCHS
 require conf/machine/include/tune-core2.inc
 
-
 # Extra tune features
 TUNEVALID[corei7] = "Enable corei7 specific processor optimizations"
-TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'corei7', ' -march=corei7 -mtune=corei7 -mfpmath=sse -msse4.2', '', d)}"
+TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'corei7', ' -march=nehalem -mtune=generic -mfpmath=sse -msse4.2', '', d)}"
 
 # Extra tune selections
 AVAILTUNES += "corei7-32"