minijail: extract ARCH_NR definition to a header, fix indentation.

BUG=chromium:416890
TEST=syscall_filter_unittest passes.

Change-Id: I0cec225e0276f786fc44a05e3dff2080866f3c49
Reviewed-on: https://chromium-review.googlesource.com/220188
Tested-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Reviewed-by: Ben Chan <benchan@chromium.org>
Commit-Queue: Jorge Lucangeli Obes <jorgelo@chromium.org>
2 files changed