ALSA: vx: Drop superfluous GFP setup

The extra setup with GFP_DMA32 is superfluous for this driver.  The
whole operation is a simple copy loop, and there is no memory address
restriction at all.  Drop the useless GFP setup.

Link: https://lore.kernel.org/r/20220823115740.14123-2-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/drivers/vx/vx_pcm.c

@@ -1215,8 +1215,7 @@ int snd_vx_pcm_new(struct vx_core *chip)
 		if (ins)
 			snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &vx_pcm_capture_ops);
 		snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					       snd_dma_continuous_data(GFP_KERNEL | GFP_DMA32),
-					       0, 0);
+					       NULL, 0, 0);
 
 		pcm->private_data = chip;
 		pcm->private_free = snd_vx_pcm_free;