seccomp: add policy file video_device on ARM.
seccomp: add policy file video_device on ARM.

BUG=b:151399776
BUG=b:151394062
TEST=Video device is properly probed with policy enabled on a guest
kernel with VIRTIO_VIDEO enabled.

Change-Id: Ia29afa0ab3eb969291c046d8657cd28e88d54b96
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2230418
Reviewed-by: Keiichi Watanabe <815e4e8f7c92a23424d7c3f51ead622bcedbc720@chromium.org>
Reviewed-by: Chirantan Ekbote <35787c0e27de5c48735e07f8324823b765e8bcbc@chromium.org>
Tested-by: Alexandre Courbot <301cd6a3ea50a894b4b51e385c5eb12b9a4ffc0c@chromium.org>
Commit-Queue: Alexandre Courbot <301cd6a3ea50a894b4b51e385c5eb12b9a4ffc0c@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm