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-devtools/gdb/gdb-common.inc b/poky/meta/recipes-devtools/gdb/gdb-common.inc
index fa64939..08f615a 100644
--- a/poky/meta/recipes-devtools/gdb/gdb-common.inc
+++ b/poky/meta/recipes-devtools/gdb/gdb-common.inc
@@ -4,11 +4,10 @@
 DEPENDS = "expat zlib ncurses virtual/libiconv ${LTTNGUST} bison-native"
 
 LTTNGUST = "lttng-ust"
+LTTNGUST_arc = ""
 LTTNGUST_aarch64 = ""
-LTTNGUST_riscv64 = ""
 LTTNGUST_mipsarch = ""
 LTTNGUST_sh4 = ""
-LTTNGUST_libc-musl = ""
 
 inherit autotools texinfo