ASoC: amd: acp5x-pcm-dma: Fix signedness bug

In acp5x_audio_probe() platform_get_irq() may return error, but i2s_irq now
is unsigned int so the error handling is never triggered.

Fixes: 87d71a12 ("ASoC: amd: pcm-dma: Use platform_get_irq() to get the interrupt")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20220305123705.3708-1-yuehaibing@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/vangogh/acp5x.h

@@ -85,7 +85,7 @@
 struct i2s_dev_data {
 	bool tdm_mode;
 	bool master_mode;
-	unsigned int i2s_irq;
+	int i2s_irq;
 	u16 i2s_instance;
 	u32 tdm_fmt;
 	void __iomem *acp5x_base;