ALSA: pci: trivial: replace numeric with standard PM state macros

Use standard PM state macros PCI_Dx instead of numeric 0/1/2..

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 372f8ea..ca8929b 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -1939,7 +1939,7 @@
 #endif
 	if (ensoniq->irq >= 0)
 		synchronize_irq(ensoniq->irq);
-	pci_set_power_state(ensoniq->pci, 3);
+	pci_set_power_state(ensoniq->pci, PCI_D3hot);
       __hw_end:
 #ifdef CHIP1370
 	if (ensoniq->dma_bug.area)