drm-tests: add per-file owner for v4l2*

Add nhebert@ as a per-file owner for v4l2_stateful_decoder.c,
v4l2_stateful_encoder.c.

TEST=none

Change-Id: I406fd129b9a254d42eeea45ff2260d37c50e6a6c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/drm-tests/+/3190959
Tested-by: Nathan Hebert <nhebert@chromium.org>
Reviewed-by: Miguel Casas <mcasas@google.com>
Reviewed-by: Ilja H. Friedel <ihf@chromium.org>
Commit-Queue: Ilja H. Friedel <ihf@chromium.org>
1 file changed