reset upstream subtrees to HEAD

Reset the following subtrees on HEAD:
  poky: 8217b477a1(master)
  meta-xilinx: 64aa3d35ae(master)
  meta-openembedded: 0435c9e193(master)
  meta-raspberrypi: 490a4441ac(master)
  meta-security: cb6d1c85ee(master)

Squashed patches:
  meta-phosphor: drop systemd 239 patches
  meta-phosphor: mrw-api: use correct install path

Change-Id: I268e2646d9174ad305630c6bbd3fbc1a6105f43d
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/poky/meta/classes/meson.bbclass b/poky/meta/classes/meson.bbclass
index 3cbdcf1..115d1ae 100644
--- a/poky/meta/classes/meson.bbclass
+++ b/poky/meta/classes/meson.bbclass
@@ -54,8 +54,12 @@
         return 'ppc'
     elif arch == 'powerpc64':
         return 'ppc64'
+    elif arch == 'armeb':
+        return 'arm'
     elif arch == 'mipsel':
         return 'mips'
+    elif arch == 'mips64el':
+        return 'mips64'
     elif re.match(r"i[3-6]86", arch):
         return "x86"
     else:
@@ -85,6 +89,7 @@
 strip = ${@meson_array('STRIP', d)}
 readelf = ${@meson_array('READELF', d)}
 pkgconfig = 'pkg-config'
+llvm-config = 'llvm-config8.0.0'
 
 [properties]
 needs_exe_wrapper = true