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/recipes-kernel/linux/linux-yocto-dev.bb b/poky/meta/recipes-kernel/linux/linux-yocto-dev.bb
index 4201faf..23cb355 100644
--- a/poky/meta/recipes-kernel/linux/linux-yocto-dev.bb
+++ b/poky/meta/recipes-kernel/linux/linux-yocto-dev.bb
@@ -10,6 +10,8 @@
 
 inherit kernel
 require recipes-kernel/linux/linux-yocto.inc
+# for ncurses tests
+inherit pkgconfig
 
 # provide this .inc to set specific revisions
 include recipes-kernel/linux/linux-yocto-dev-revisions.inc
@@ -28,10 +30,12 @@
 SRCREV_machine ?= '${@oe.utils.conditional("PREFERRED_PROVIDER_virtual/kernel", "linux-yocto-dev", "${AUTOREV}", "29594404d7fe73cd80eaa4ee8c43dcc53970c60e", d)}'
 SRCREV_meta ?= '${@oe.utils.conditional("PREFERRED_PROVIDER_virtual/kernel", "linux-yocto-dev", "${AUTOREV}", "29594404d7fe73cd80eaa4ee8c43dcc53970c60e", d)}'
 
-LINUX_VERSION ?= "4.16-rc+"
+LINUX_VERSION ?= "4.19-rc+"
 LINUX_VERSION_EXTENSION ?= "-yoctodev-${LINUX_KERNEL_TYPE}"
 PV = "${LINUX_VERSION}+git${SRCPV}"
 
+LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"
+
 DEPENDS += "${@bb.utils.contains('ARCH', 'x86', 'elfutils-native', '', d)}"
 DEPENDS += "openssl-native util-linux-native"