Rename A64 port to ARM64 port

src/objects.h

Index: src/objects.h
diff --git a/src/objects.h b/src/objects.h
index 30d9ad38a34d4e1fbf56f91f7e0a4d9d1dd6251c..f730d2f53591916e35e12f1a2ef4dc2eab1395f0 100644
--- a/src/objects.h
+++ b/src/objects.h
@@ -37,8 +37,8 @@
 #include "property-details.h"
 #include "smart-pointers.h"
 #include "unicode-inl.h"
-#if V8_TARGET_ARCH_A64
-#include "a64/constants-a64.h"
+#if V8_TARGET_ARCH_ARM64
+#include "arm64/constants-arm64.h"
 #elif V8_TARGET_ARCH_ARM
 #include "arm/constants-arm.h"
 #elif V8_TARGET_ARCH_MIPS
@@ -1246,8 +1246,8 @@ class MaybeObject BASE_EMBEDDED {
   V(kLetBindingReInitialization, "Let binding re-initialization")             \
   V(kLhsHasBeenClobbered, "lhs has been clobbered")                           \
   V(kLiveBytesCountOverflowChunkSize, "Live Bytes Count overflow chunk size") \
-  V(kLiveEditFrameDroppingIsNotSupportedOnA64,                                \
-    "LiveEdit frame dropping is not supported on a64")                        \
+  V(kLiveEditFrameDroppingIsNotSupportedOnARM64,                              \
+    "LiveEdit frame dropping is not supported on arm64")                      \
   V(kLiveEditFrameDroppingIsNotSupportedOnArm,                                \
     "LiveEdit frame dropping is not supported on arm")                        \
   V(kLiveEditFrameDroppingIsNotSupportedOnMips,                               \