add arm64 support

- add arm64 dependent codes with GICv3 and SVE support
- fix bugs based on architecture separation requests

arch/x86/kernel/include/ihk/types.h

@@ -29,6 +29,14 @@ typedef uint64_t           size_t;
 typedef int64_t            ssize_t;
 typedef int64_t            off_t;
 
+#ifdef POSTK_DEBUG_ARCH_DEP_18 /* coredump arch separation. */
+typedef int32_t            key_t;
+typedef uint32_t           uid_t;
+typedef uint32_t           gid_t;
+typedef int64_t            time_t;
+typedef int32_t            pid_t;
+#endif /* POSTK_DEBUG_ARCH_DEP_18 */
+
 #define NULL ((void *)0)
 
 #endif