ALSA: PCI: Replace CONFIG_PM with CONFIG_PM_SLEEP

Otherwise we may get compile warnings due to unused functions.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/cs4281.c

diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 45a83170..8e86ec0 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -486,7 +486,7 @@
 
 	struct gameport *gameport;
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 	u32 suspend_regs[SUSPEND_REGISTERS];
 #endif
 
@@ -1977,7 +1977,7 @@
 /*
  * Power Management
  */
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 
 static int saved_regs[SUSPEND_REGISTERS] = {
 	BA0_JSCTL,
@@ -2089,7 +2089,7 @@
 #define CS4281_PM_OPS	&cs4281_pm
 #else
 #define CS4281_PM_OPS	NULL
-#endif /* CONFIG_PM */
+#endif /* CONFIG_PM_SLEEP */
 
 static struct pci_driver cs4281_driver = {
 	.name = KBUILD_MODNAME,