seccomp: allow clock_gettime & {f}stat* syscalls

Starting with glibc 2.33 clock_gettime & {f}stat* are used on
arm so we need to allow them to avoid minijail failures.

Example from crash dump:
    _sigsys = {
      _call_addr = 0xeba1ee46 <__libc_do_syscall+6>,
      _syscall = 263,
      _arch = 1073741864
    }

BUG=b:187795855
TEST=Local builds on EVE, Kevin and Kevin64; CQ.

Change-Id: I60f15fec604ec155afb3d6cb0932b1b0c0fa7e2f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/touch_updater/+/2956511
Reviewed-by: Sean O'Brien <seobrien@chromium.org>
Commit-Queue: Luis Lozano <llozano@chromium.org>
Tested-by: Luis Lozano <llozano@chromium.org>
2 files changed