CHROMIUM: arch/arm: select HAVE_ARCH_SECCOMP_FILTER

(I will post this upstream after the 3.5 merge window)

Reflect architectural support for seccomp filter.

Change-Id: I163078260e73a8fb7b9967ce740bd21f83902b8e
Signed-off-by: Will Drewry <wad@chromium.org>

BUG=chromium-os:27878
TEST=compiles for arm. Need to test on a live machine.

Change-Id: Ic0286cc7d150838fbfa05e259ea908aeeef1b864
Reviewed-on: https://gerrit.chromium.org/gerrit/21377
Reviewed-by: Will Drewry <wad@chromium.org>
Tested-by: Will Drewry <wad@chromium.org>
Signed-off-by: Sasha Levitskiy <sanek@google.com>