ALSA: Separate common pxa2xx-pcm code

ASoC and non-ASoC drivers for PCM DMA on PXA share lots of common code.
Move it to pxa2xx-lib.

[Fixed some checkpatch warnings -- broonie]

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/arm/Makefile b/sound/arm/Makefile
index bb2ed88..2054de1 100644
--- a/sound/arm/Makefile
+++ b/sound/arm/Makefile
@@ -12,7 +12,8 @@
 snd-pxa2xx-pcm-objs		:= pxa2xx-pcm.o
 
 obj-$(CONFIG_SND_PXA2XX_LIB)	+= snd-pxa2xx-lib.o
-snd-pxa2xx-lib-objs		:= pxa2xx-ac97-lib.o
+snd-pxa2xx-lib-y		:= pxa2xx-pcm-lib.o
+snd-pxa2xx-lib-$(CONFIG_SND_PXA2XX_LIB_AC97)	+= pxa2xx-ac97-lib.o
 
 obj-$(CONFIG_SND_PXA2XX_AC97)	+= snd-pxa2xx-ac97.o
 snd-pxa2xx-ac97-objs		:= pxa2xx-ac97.o