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-kernel/linux-firmware/linux-firmware_git.bb b/poky/meta/recipes-kernel/linux-firmware/linux-firmware_git.bb
index fdf8f19..ad7babf 100644
--- a/poky/meta/recipes-kernel/linux-firmware/linux-firmware_git.bb
+++ b/poky/meta/recipes-kernel/linux-firmware/linux-firmware_git.bb
@@ -122,7 +122,7 @@
     file://LICENCE.xc4000;md5=0ff51d2dc49fce04814c9155081092f0 \
     file://LICENCE.xc5000;md5=1e170c13175323c32c7f4d0998d53f66 \
     file://LICENCE.xc5000c;md5=12b02efa3049db65d524aeb418dd87ca \
-    file://WHENCE;md5=66abf0fb69b09d6f3d2db6088594c808 \
+    file://WHENCE;md5=ef36d3383becd18f36ce32d84109386f \
 "
 
 # These are not common licenses, set NO_GENERIC_LICENSE for them
@@ -188,7 +188,7 @@
 NO_GENERIC_LICENSE[Firmware-xc5000c] = "LICENCE.xc5000c"
 NO_GENERIC_LICENSE[WHENCE] = "WHENCE"
 
-SRCREV = "710963fe53ee3f227556d36839df3858daf6e232"
+SRCREV = "7bc246451318b3536d9bfd3c4e46d541a9831b33"
 PE = "1"
 PV = "0.0+git${SRCPV}"