ALSA: hda - Fix missing inline for dummy snd_hdac_set_codec_wakeup()

This seems overlooked.

Fixes: 98d8fc6c5d36 ('ALSA: hda - Move hda_i915.c from sound/pci/hda to sound/hda')
Cc: <stable@vger.kernel.org> # v4.2+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/include/sound/hda_i915.h b/include/sound/hda_i915.h
index a5b5cae..930b41e 100644
--- a/include/sound/hda_i915.h
+++ b/include/sound/hda_i915.h
@@ -14,7 +14,7 @@
 int snd_hdac_i915_exit(struct hdac_bus *bus);
 int snd_hdac_i915_register_notifier(const struct i915_audio_component_audio_ops *);
 #else
-static int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
+static inline int snd_hdac_set_codec_wakeup(struct hdac_bus *bus, bool enable)
 {
 	return 0;
 }