add arm64 support

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

arch/arm64/kernel/include/hwcap.h

@@ -0,0 +1,28 @@
+/* hwcap.h COPYRIGHT FUJITSU LIMITED 2017 */
+#ifdef POSTK_DEBUG_ARCH_DEP_65
+#ifndef _UAPI__ASM_HWCAP_H
+#define _UAPI__ASM_HWCAP_H
+
+/*
+ * HWCAP flags - for elf_hwcap (in kernel) and AT_HWCAP
+ */
+#define HWCAP_FP		(1 << 0)
+#define HWCAP_ASIMD		(1 << 1)
+#define HWCAP_EVTSTRM		(1 << 2)
+#define HWCAP_AES		(1 << 3)
+#define HWCAP_PMULL		(1 << 4)
+#define HWCAP_SHA1		(1 << 5)
+#define HWCAP_SHA2		(1 << 6)
+#define HWCAP_CRC32		(1 << 7)
+#define HWCAP_ATOMICS		(1 << 8)
+#define HWCAP_FPHP		(1 << 9)
+#define HWCAP_ASIMDHP		(1 << 10)
+#define HWCAP_CPUID		(1 << 11)
+#define HWCAP_ASIMDRDM		(1 << 12)
+#define HWCAP_SVE		(1 << 13)
+
+unsigned long arch_get_hwcap(void);
+extern unsigned long elf_hwcap;
+
+#endif /* _UAPI__ASM_HWCAP_H */
+#endif /* POSTK_DEBUG_ARCH_DEP_65 */