parisc: 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 parisc.

Signed-off-by: YiFei Zhu <yifeifz2@illinois.edu>
Acked-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/9bb86c546eda753adf5270425e7353202dbce87c.1605101222.git.yifeifz2@illinois.edu

parisc: switch to using asm-generic for seccomp.h

Switch to using the newly created asm-generic/seccomp.h for the seccomp
strict mode syscall definitions. Definitions were identical.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parisc: Wire up seccomp, getrandom and memfd_create syscalls

With secure computing we only support the SECCOMP_MODE_STRICT mode for
now.

Signed-off-by: Helge Deller <deller@gmx.de>