ALSA: hda - moved alloc/free stream pages function to controller library

Moved azx_alloc_stream_pages and azx_free_stream_pages
to controller library.

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 69f27bc..59d2184 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -314,6 +314,9 @@
 				    void (*ack)(struct hdac_bus *,
 						struct hdac_stream *));
 
+int snd_hdac_bus_alloc_stream_pages(struct hdac_bus *bus);
+void snd_hdac_bus_free_stream_pages(struct hdac_bus *bus);
+
 /*
  * macros for easy use
  */