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/meta-raspberrypi/conf/machine/include/rpi-base.inc b/meta-raspberrypi/conf/machine/include/rpi-base.inc
index 4bbd576..cc6a54e 100644
--- a/meta-raspberrypi/conf/machine/include/rpi-base.inc
+++ b/meta-raspberrypi/conf/machine/include/rpi-base.inc
@@ -25,7 +25,7 @@
     overlays/i2c-rtc.dtbo \
     overlays/iqaudio-dac.dtbo \
     overlays/iqaudio-dacplus.dtbo \
-    overlays/lirc-rpi.dtbo \
+    overlays/mcp2515-can0.dtbo \
     overlays/pi3-disable-bt.dtbo \
     overlays/pi3-miniuart-bt.dtbo \
     overlays/pitft22.dtbo \