ALSA: fm801: More constification

Apply const prefix to the static register table.

Just for minor optimization and no functional changes.

Link: https://lore.kernel.org/r/20200105144823.29547-65-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/fm801.c

@@ -1360,7 +1360,7 @@ static void snd_card_fm801_remove(struct pci_dev *pci)
 }
 
 #ifdef CONFIG_PM_SLEEP
-static unsigned char saved_regs[] = {
+static const unsigned char saved_regs[] = {
 	FM801_PCM_VOL, FM801_I2S_VOL, FM801_FM_VOL, FM801_REC_SRC,
 	FM801_PLY_CTRL, FM801_PLY_COUNT, FM801_PLY_BUF1, FM801_PLY_BUF2,
 	FM801_CAP_CTRL, FM801_CAP_COUNT, FM801_CAP_BUF1, FM801_CAP_BUF2,