config: include video_fd_daedalus in profile enumeration probe

LIBVA-2 follow-up.  RequestQueryConfigProfiles walks each known
decoder fd via any_fd_supports_output_format() and adds a VAProfile*
for each codec OUTPUT format the V4L2 device advertises.  The fd
list missed video_fd_daedalus — so on a Pi 5 with rpi-hevc-dec
primary + daedalus_v4l2 alt, only S265 (HEVC) was probed and the
H.264 / VP9 / AV1 profiles never got enumerated.

Effect on higgs: ffmpeg -hwaccel vaapi -i h264_test.mp4 reported
"No support for codec h264 profile 578" before the per-codec
dispatch in request_switch_device_for_profile could fire — the
profile-578 (H264 Constrained Baseline) check happened during
hwaccel init, found nothing in the libva profile list, and bailed
without ever calling into the daedalus path.

Fix: extend the fds[] array in any_fd_supports_output_format from
5 to 6 entries, with the sixth being video_fd_daedalus when
HAVE_DAEDALUS_V4L2 is on (and -1 otherwise so it's skipped by the
`if (fds[i] < 0) continue;` guard).  After the fix, daedalus_v4l2's
OUTPUT format menu (VP9F + AV1F + S264) gets seen, and Request-
QueryConfigProfiles returns VP9Profile0 + AV1Profile0 + the H264*
profiles, all of which then route through the LIBVA-1 'd' kind
override in request_switch_device_for_profile.

Verified on higgs:

  Before:
    vainfo: Supported profile and entrypoints
          VAProfileHEVCMain               : VAEntrypointVLD
    (only HEVC; H264/VP9/AV1 not enumerated)

  ffmpeg vaapi -i h264 → "No support for codec h264 profile 578"

Build clean on boltzmann (only config.c.o + request.c.o recompile).

Backward-compatible on RK3399/3588 — the new slot is gated by
HAVE_DAEDALUS_V4L2 *and* video_fd_daedalus >= 0; both stay false in
those deployments.  Existing 5-fd probe order unchanged.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/config.c

@@ -172,15 +172,20 @@ VAStatus RequestDestroyConfig(VADriverContextP context, VAConfigID config_id)
 static bool any_fd_supports_output_format(struct request_data *driver_data,
 					  unsigned int fmt)
 {
-	int fds[5] = {
+	int fds[6] = {
 		driver_data->video_fd,
 		driver_data->video_fd_rkvdec,
 		driver_data->video_fd_hantro,
 		driver_data->video_fd_rpi_hevc_dec,  /* iter40 */
 		driver_data->video_fd_vpu981,        /* ampere-av1 Phase 2 */
+#ifdef HAVE_DAEDALUS_V4L2
+		driver_data->video_fd_daedalus,      /* LIBVA-1: H.264/VP9/AV1 */
+#else
+		-1,
+#endif
 	};
 	int i;
-	for (i = 0; i < 5; i++) {
+	for (i = 0; i < 6; i++) {
 		if (fds[i] < 0) continue;
 		if (v4l2_find_format(fds[i], V4L2_BUF_TYPE_VIDEO_OUTPUT, fmt))
 			return true;