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-poky/conf/local.conf.sample b/poky/meta-poky/conf/local.conf.sample
index cf96598..9068e56 100644
--- a/poky/meta-poky/conf/local.conf.sample
+++ b/poky/meta-poky/conf/local.conf.sample
@@ -124,6 +124,8 @@
 # variable can contain the following options:
 #  "dbg-pkgs"       - add -dbg packages for all installed packages
 #                     (adds symbol information for debugging/profiling)
+#  "src-pkgs"       - add -src packages for all installed packages
+#                     (adds source code for debugging)
 #  "dev-pkgs"       - add -dev packages for all installed packages
 #                     (useful if you want to develop against libs in the image)
 #  "ptest-pkgs"     - add -ptest packages for all ptest-enabled packages
@@ -239,7 +241,7 @@
 # seen. The two lines below enable the SDL backend too. By default libsdl2-native will
 # be built, if you want to use your host's libSDL instead of the minimal libsdl built
 # by libsdl2-native then uncomment the ASSUME_PROVIDED line below.
-PACKAGECONFIG_append_pn-qemu-native = " sdl"
+PACKAGECONFIG_append_pn-qemu-system-native = " sdl"
 PACKAGECONFIG_append_pn-nativesdk-qemu = " sdl"
 #ASSUME_PROVIDED += "libsdl2-native"