ASoC: SOF: mediatek: mt8186: Add Google Steelix topology compatible

Add the machine compatible and topology filename for the Google Steelix
MT8186 Chromebook to load the correct SOF topology file.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

sound/soc/sof/mediatek/mt8186/mt8186.c

@@ -548,6 +548,9 @@ static const struct snd_sof_dsp_ops sof_mt8186_ops = {
 
 static struct snd_sof_of_mach sof_mt8186_machs[] = {
 	{
+		.compatible = "google,steelix",
+		.sof_tplg_filename = "sof-mt8186-google-steelix.tplg"
+	}, {
 		.compatible = "mediatek,mt8186",
 		.sof_tplg_filename = "sof-mt8186.tplg",
 	},