arm64: use symbol rather than constant (128) for calculating group name in AArch64_group_name()
diff --git a/arch/AArch64/AArch64Mapping.c b/arch/AArch64/AArch64Mapping.c
index b31c958..0b15902 100644
--- a/arch/AArch64/AArch64Mapping.c
+++ b/arch/AArch64/AArch64Mapping.c
@@ -857,9 +857,9 @@
 	if (id >= ARM64_GRP_ENDING || (id > ARM64_GRP_RET && id < ARM64_GRP_CRYPTO))
 		return NULL;
 
-	// NOTE: when new generic groups are added, 2 must be changed accordingly
-	if (id >= 128)
-		return group_name_maps[id - 128 + 4].name;
+	// NOTE: when new generic groups are added, 4 must be changed accordingly
+	if (id >= ARM64_GRP_CRYPTO)
+		return group_name_maps[id - ARM64_GRP_CRYPTO + 4].name;
 	else
 		return group_name_maps[id].name;
 #else