Add missing asm-ppc/seccomp.h. Must learn to use git properly.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

include/asm-ppc/seccomp.h

+#ifndef _ASM_SECCOMP_H
+
+#include <linux/unistd.h>
+
+#define __NR_seccomp_read __NR_read
+#define __NR_seccomp_write __NR_write
+#define __NR_seccomp_exit __NR_exit
+#define __NR_seccomp_sigreturn __NR_rt_sigreturn
+
+#endif /* _ASM_SECCOMP_H */