[arm64] Use the ISB instruction instead of YIELD
https://source.chromium.org/chromium/_/chromium/v8/v8/+/2b4f16e81707a744c09417f49ad6c7cb77413da8
--- a/deps/v8/src/base/platform/yield-processor.h
+++ b/deps/v8/src/base/platform/yield-processor.h
@@ -41,8 +41,10 @@
 #if defined(V8_HOST_ARCH_IA32) || defined(V8_HOST_ARCH_X64)
 #define YIELD_PROCESSOR __asm__ __volatile__("pause")
 #elif defined(V8_HOST_ARCH_ARM64) || \
-    (defined(V8_HOST_ARCH_ARM) && __ARM_ARCH >= 6)
+    (defined(V8_HOST_ARCH_ARM) && __ARM_ARCH > 6)
 #define YIELD_PROCESSOR __asm__ __volatile__("isb" ::: "memory")
+#elif defined(V8_HOST_ARCH_ARM)
+#define YIELD_PROCESSOR __asm__ __volatile__("yield")
 #elif defined(V8_HOST_ARCH_MIPS64EL) && __mips_isa_rev >= 2
 // Don't bother doing using .word here since r2 is the lowest supported mips64
 // that Chromium supports.