media: saa7134: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a break statement instead of letting the code fall
through to the next case.

Link: https://github.com/KSPP/linux/issues/115
[hverkuil: fix checkpatch TAB indendation issues]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/pci/saa7134/saa7134-tvaudio.c

@@ -871,23 +871,24 @@ void saa7134_enable_i2s(struct saa7134_dev *dev)
 	switch (dev->pci->device) {
 	case PCI_DEVICE_ID_PHILIPS_SAA7133:
 	case PCI_DEVICE_ID_PHILIPS_SAA7135:
-	    /* Set I2S format (SONY)  */
-	    saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00);
-	    /* Start I2S */
-	    saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11);
-	    break;
+		/* Set I2S format (SONY)  */
+		saa_writeb(SAA7133_I2S_AUDIO_CONTROL, 0x00);
+		/* Start I2S */
+		saa_writeb(SAA7134_I2S_AUDIO_OUTPUT, 0x11);
+		break;
 
 	case PCI_DEVICE_ID_PHILIPS_SAA7134:
-	    i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
+		i2s_format = (dev->input->amux == TV) ? 0x00 : 0x01;
 
-	    /* enable I2S audio output for the mpeg encoder */
-	    saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
-	    saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
-	    saa_writeb(SAA7134_I2S_OUTPUT_LEVEL,  0x0F);
-	    saa_writeb(SAA7134_I2S_AUDIO_OUTPUT,  0x01);
+		/* enable I2S audio output for the mpeg encoder */
+		saa_writeb(SAA7134_I2S_OUTPUT_SELECT, 0x80);
+		saa_writeb(SAA7134_I2S_OUTPUT_FORMAT, i2s_format);
+		saa_writeb(SAA7134_I2S_OUTPUT_LEVEL,  0x0F);
+		saa_writeb(SAA7134_I2S_AUDIO_OUTPUT,  0x01);
+		break;
 
 	default:
-	    break;
+		break;
 	}
 }