sh: Enable seccomp architecture tracking

To enable seccomp constant action bitmaps, we need to have a static
mapping to the audit architecture and system call table size. Add these
for sh.

Signed-off-by: YiFei Zhu <[e-mail]>
Signed-off-by: Kees Cook <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/sh/include/asm/seccomp.h

···
 #define __NR_seccomp_exit __NR_exit
 #define __NR_seccomp_sigreturn __NR_rt_sigreturn
 
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+#define __SECCOMP_ARCH_LE		__AUDIT_ARCH_LE
+#else
+#define __SECCOMP_ARCH_LE		0
+#endif
+
+#define SECCOMP_ARCH_NATIVE		(AUDIT_ARCH_SH | __SECCOMP_ARCH_LE)
+#define SECCOMP_ARCH_NATIVE_NR		NR_syscalls
+#define SECCOMP_ARCH_NATIVE_NAME	"sh"
+
 #endif /* __ASM_SECCOMP_H */