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-openembedded/meta-multimedia/recipes-multimedia/webrtc-audio-processing/webrtc-audio-processing/riscv_support.patch b/meta-openembedded/meta-multimedia/recipes-multimedia/webrtc-audio-processing/webrtc-audio-processing/riscv_support.patch
new file mode 100644
index 0000000..576b986
--- /dev/null
+++ b/meta-openembedded/meta-multimedia/recipes-multimedia/webrtc-audio-processing/webrtc-audio-processing/riscv_support.patch
@@ -0,0 +1,33 @@
+Add support for RISC-V
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+--- a/webrtc/base/basictypes.h
++++ b/webrtc/base/basictypes.h
+@@ -29,6 +29,10 @@
+ #define CPU_ARM 1
+ #endif
+ 
++#if defined(__riscv) || defined(_M_RISCV)
++#define CPU_RISCV 1
++#endif
++
+ #if defined(CPU_X86) && defined(CPU_ARM)
+ #error CPU_X86 and CPU_ARM both defined.
+ #endif
+--- a/webrtc/typedefs.h
++++ b/webrtc/typedefs.h
+@@ -56,6 +56,13 @@
+ #elif defined(__powerpc__)
+ #define WEBRTC_ARCH_32_BITS
+ #define WEBRTC_ARCH_BIG_ENDIAN
++#elif defined(__riscv)
++#if __riscv_xlen == 64
++# define WEBRTC_ARCH_64_BITS
++#else
++# define WEBRTC_ARCH_32_BITS
++#endif
++#define WEBRTC_ARCH_LITTLE_ENDIAN
+ #elif defined(__pnacl__)
+ #define WEBRTC_ARCH_32_BITS
+ #define WEBRTC_ARCH_LITTLE_ENDIAN