Wire up new syscalls

* linux/dummy.h (sys_bpf, sys_execveat, sys_getrandom,
sys_kexec_file_load, sys_memfd_create, sys_seccomp): New stub aliases.
* linux/32/syscallent.h (seccomp, getrandom, memfd_create, bpf,
execveat): New entries.
* linux/64/syscallent.h: Likewise.
* linux/arm/syscallent.h: Likewise.
* linux/hppa/syscallent.h: Likewise.
* linux/i386/syscallent.h: Likewise.
* linux/microblaze/syscallent.h: Likewise.
* linux/mips/syscallent-n32.h: Likewise.
* linux/mips/syscallent-n64.h: Likewise.
* linux/mips/syscallent-o32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/ia64/syscallent.h (getrandom, memfd_create, bpf, execveat):
New entries.
* linux/m68k/syscallent.h: Likewise.
* linux/s390/syscallent.h: (seccomp, getrandom, memfd_create, bpf,
s390_pci_mmio_write, s390_pci_mmio_read, execveat): New entries.
* linux/s390x/syscallent.h: Likewise.
* linux/x86_64/syscallent.h (seccomp, getrandom, memfd_create,
kexec_file_load, bpf, execveat): New entries.
* linux/x32/syscallent.h: Likewise.
* linux/xtensa/syscallent.h (seccomp, getrandom, memfd_create):
New entries.
19 files changed