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/recipes-graphics/mesa/files/0003-Properly-get-LLVM-version-when-using-LLVM-Git-releas.patch b/poky/meta/recipes-graphics/mesa/files/0003-Properly-get-LLVM-version-when-using-LLVM-Git-releas.patch
index 5e735ca..96edc21 100644
--- a/poky/meta/recipes-graphics/mesa/files/0003-Properly-get-LLVM-version-when-using-LLVM-Git-releas.patch
+++ b/poky/meta/recipes-graphics/mesa/files/0003-Properly-get-LLVM-version-when-using-LLVM-Git-releas.patch
@@ -1,7 +1,7 @@
-From 8b42fb47138f91d9378439ab716bac7701e4e326 Mon Sep 17 00:00:00 2001
+From ce7b9ff6517fda089f296b2af2c1c49604872514 Mon Sep 17 00:00:00 2001
 From: Otavio Salvador <otavio@ossystems.com.br>
 Date: Tue, 5 Jun 2018 11:11:10 -0300
-Subject: [PATCH 3/6] Properly get LLVM version when using LLVM Git releases
+Subject: [PATCH 3/4] Properly get LLVM version when using LLVM Git releases
 Organization: O.S. Systems Software LTDA.
 
 $ llvm-config-host --version
@@ -13,15 +13,16 @@
 Upstream-Status: Pending
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
 Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
+Signed-off-by: Fabio Berton <fabio.berton@ossystems.com.br>
 ---
  configure.ac | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)
 
 diff --git a/configure.ac b/configure.ac
-index 916d0bd207..dd172f1ebe 100644
+index 1816a4cd475..13fed9daf59 100644
 --- a/configure.ac
 +++ b/configure.ac
-@@ -1090,7 +1090,7 @@ strip_unwanted_llvm_flags() {
+@@ -1124,7 +1124,7 @@ strip_unwanted_llvm_flags() {
  
  llvm_set_environment_variables() {
      if test "x$LLVM_CONFIG" != xno; then
@@ -30,7 +31,7 @@
          LLVM_CPPFLAGS=`strip_unwanted_llvm_flags "$LLVM_CONFIG --cppflags"`
          LLVM_INCLUDEDIR=`$LLVM_CONFIG --includedir`
          LLVM_LIBDIR=`$LLVM_CONFIG --libdir`
-@@ -2808,7 +2808,7 @@ detect_old_buggy_llvm() {
+@@ -2870,7 +2870,7 @@ detect_old_buggy_llvm() {
      dnl ourselves.
      dnl (See https://llvm.org/bugs/show_bug.cgi?id=6823)
      dnl We can't use $LLVM_VERSION because it has 'svn' stripped out,
@@ -40,5 +41,5 @@
  
      if test "x$llvm_have_one_so" = xyes; then
 -- 
-2.18.0
+2.21.0