CHROMIUM: arm: select HAVE_SECCOMP_FILTER

CHROMIUM: arm: select HAVE_SECCOMP_FILTER

BugLink: http://bugs.launchpad.net/bugs/887780

Enable support for CONFIG_SECCOMP_FILTER by selecting HAVE_SECCOMP_FILTER by
default.

v9: rebase on to bccaeafd7c117acee36e90d37c7e05c19be9e7bf

Signed-off-by: Will Drewry <wad@chromium.org>
BUG=chromium-os:14496
TEST=builds on arm, testsuite works.

Change-Id: I4eada815f792c9eff64438e1a6dbe55ad44bc2c7
Reviewed-on: http://gerrit.chromium.org/gerrit/3245
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
Tested-by: Will Drewry <wad@chromium.org>
Signed-off-by: Kees Cook <kees.cook@canonical.com>