ASoC: tegra: Add driver remove() callback

There is cleanup required, related to release of phandles, during driver
removal and hence point remove callback to audio_graph_remove().

Fixes: 202e2f77 ("ASoC: tegra: Add audio graph based card driver")
Depends-on: "ASoC: audio-graph: Rename functions needed for export"
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/1612719418-5858-3-git-send-email-spujar@nvidia.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/tegra/tegra_audio_graph_card.c

@@ -2,7 +2,7 @@
 //
 // tegra_audio_graph_card.c - Audio Graph based Tegra Machine Driver
 //
-// Copyright (c) 2020 NVIDIA CORPORATION.  All rights reserved.
+// Copyright (c) 2020-2021 NVIDIA CORPORATION.  All rights reserved.
 
 #include <linux/math64.h>
 #include <linux/module.h>
@@ -243,6 +243,7 @@ static struct platform_driver tegra_audio_graph_card = {
 		.of_match_table = graph_of_tegra_match,
 	},
 	.probe = tegra_audio_graph_probe,
+	.remove = audio_graph_remove,
 };
 module_platform_driver(tegra_audio_graph_card);