ASoC: SOF: amd: add missing platform_device_unregister in acp_pci_rn_probe

acp_pci_rn_probe misses a call platform_device_unregister in error path,
this patch fixes that.
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Link: https://lore.kernel.org/r/20220512013728.4128903-1-zhengbin13@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/amd/pci-rn.c

@@ -101,6 +101,7 @@ static int acp_pci_rn_probe(struct pci_dev *pci, const struct pci_device_id *pci
 	res = devm_kzalloc(&pci->dev, sizeof(struct resource) * ARRAY_SIZE(renoir_res), GFP_KERNEL);
 	if (!res) {
 		sof_pci_remove(pci);
+		platform_device_unregister(dmic_dev);
 		return -ENOMEM;
 	}