ASoC: fsl - fix build error in pcm030-audio-fabric.c

Fix build error:-

sound/soc/fsl/pcm030-audio-fabric.c:27:33: fatal error:
sound/soc-of-simple.h: No such file or directory

Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>