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