ASoC: Sort DAPM sequences by CODEC as well

In preparation for multiple device support.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 4cf5891..de22c2f 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -739,6 +739,8 @@
 			    struct snd_soc_dapm_widget *b,
 			    int sort[])
 {
+	if (a->codec != b->codec)
+		return (unsigned long)a - (unsigned long)b;
 	if (sort[a->id] != sort[b->id])
 		return sort[a->id] - sort[b->id];
 	if (a->reg != b->reg)