ALSA: oxygen: fix Xonar DG input

Apparently, this card uses the other I2S input.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/oxygen/xonar_dg.c

@@ -561,7 +561,7 @@ struct oxygen_model model_xonar_dg = {
 	.model_data_size = sizeof(struct dg),
 	.device_config = PLAYBACK_0_TO_I2S |
 			 PLAYBACK_1_TO_SPDIF |
-			 CAPTURE_0_FROM_I2S_1,
+			 CAPTURE_0_FROM_I2S_2,
 	.dac_channels_pcm = 6,
 	.dac_channels_mixer = 0,
 	.function_flags = OXYGEN_FUNCTION_SPI,