ALSA: hda - Make CONFIG_SND_HDA_POWER_SAVE depending on CONFIG_PM

It makes little sense to enable power-saving without PM.
This removes SND_HDA_NEEDS_RESUME define so that we can use CONFIG_PM
in all places.

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

sound/pci/hda/patch_sigmatel.c

@@ -4934,7 +4934,7 @@ static void stac927x_proc_hook(struct snd_info_buffer *buffer,
 #define stac927x_proc_hook	NULL
 #endif
 
-#ifdef SND_HDA_NEEDS_RESUME
+#ifdef CONFIG_PM
 static int stac92xx_pre_resume(struct hda_codec *codec)
 {
 	struct sigmatel_spec *spec = codec->spec;
@@ -5030,7 +5030,7 @@ static int stac92xx_suspend(struct hda_codec *codec, pm_message_t state)
 	stac92xx_shutup(codec);
 	return 0;
 }
-#endif
+#endif /* CONFIG_PM */
 
 static const struct hda_codec_ops stac92xx_patch_ops = {
 	.build_controls = stac92xx_build_controls,
@@ -5038,7 +5038,7 @@ static const struct hda_codec_ops stac92xx_patch_ops = {
 	.init = stac92xx_init,
 	.free = stac92xx_free,
 	.unsol_event = stac92xx_unsol_event,
-#ifdef SND_HDA_NEEDS_RESUME
+#ifdef CONFIG_PM
 	.suspend = stac92xx_suspend,
 	.resume = stac92xx_resume,
 	.pre_resume = stac92xx_pre_resume,