ALSA: cs5535audio: use named constants for pci_power_t values

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/

)

// <smpl>
@@
expression pdev;
@@

pci_set_power_state(pdev,
- 3
+ PCI_D3hot
 )
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>