ALSA: memalloc: declare snd_sgbuf_aligned_pages() unconditionally

Make this helper inline function available for all platforms. This
helps solve 0-day compilation issues when CONFIG_SND_DMA_SGBUF is not
defined.
Reported-by: Nkbuild test robot <lkp@intel.com>
Signed-off-by: NPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NMark Brown <broonie@kernel.org>

include/sound/memalloc.h

@@ -67,6 +67,14 @@ struct snd_dma_buffer {
 	void *private_data;	/* private for allocator; don't touch */
 };
 
+/*
+ * return the pages matching with the given byte size
+ */
+static inline unsigned int snd_sgbuf_aligned_pages(size_t size)
+{
+	return (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+}
+
 #ifdef CONFIG_SND_DMA_SGBUF
 /*
  * Scatter-Gather generic device pages
@@ -90,14 +98,6 @@ struct snd_sg_buf {
 	struct device *dev;
 };
 
-/*
- * return the pages matching with the given byte size
- */
-static inline unsigned int snd_sgbuf_aligned_pages(size_t size)
-{
-	return (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-}
-
 /*
  * return the physical address at the corresponding offset
  */