ASoC: ti: omap-hdmi: Re-add dai_link->platform to fix card init

The removed dai_link->platform component cause a fail which
is exposed at runtime. (ex: when a sound tool is used)
This patch re-adds the dai_link->platform component to have
a full card registered.

Before this patch:
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 1: HDMI [HDMI], device 0: HDMI snd-soc-dummy-dai-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

$ speaker-test -D plughw:1,0 -t sine
speaker-test 1.2.8
Playback device is plughw:1,0
Stream parameters are 48000Hz, S16_LE, 1 channels
Sine wave rate is 440.0000Hz
Playback open error: -22,Invalid argument

After this patch which restores the platform component:
$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDMI], device 0: HDMI snd-soc-dummy-dai-0 [HDMI snd-soc-dummy-dai-0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

-> Resolve the playback error.

Fixes: 3b0db24 ("ASoC: ti: remove unnecessary dai_link->platform")

Signed-off-by: Yuuki NAGAO <wf.yn386@gmail.com>
Link: https://patch.msgid.link/20250531141341.81164-1-wf.yn386@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: yn386

sound/soc/ti/omap-hdmi.c

@@ -361,17 +361,20 @@ static int omap_hdmi_audio_probe(struct platform_device *pdev)
 	if (!card->dai_link)
 		return -ENOMEM;
 
-	compnent = devm_kzalloc(dev, sizeof(*compnent), GFP_KERNEL);
+	compnent = devm_kzalloc(dev, 2 * sizeof(*compnent), GFP_KERNEL);
 	if (!compnent)
 		return -ENOMEM;
-	card->dai_link->cpus		= compnent;
+	card->dai_link->cpus		= &compnent[0];
 	card->dai_link->num_cpus	= 1;
 	card->dai_link->codecs		= &snd_soc_dummy_dlc;
 	card->dai_link->num_codecs	= 1;
+	card->dai_link->platforms	= &compnent[1];
+	card->dai_link->num_platforms	= 1;
 
 	card->dai_link->name = card->name;
 	card->dai_link->stream_name = card->name;
 	card->dai_link->cpus->dai_name = dev_name(ad->dssdev);
+	card->dai_link->platforms->name = dev_name(ad->dssdev);
 	card->num_links = 1;
 	card->dev = dev;