ALSA: cs5535audio: clean up OLPC code

- add copyright info to _olpc.c
 - minor layout fixes
 - make Makefile more concise
 - silence a warning

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/cs5535audio/Makefile b/sound/pci/cs5535audio/Makefile
index 3e41fd3..ccc6422 100644
--- a/sound/pci/cs5535audio/Makefile
+++ b/sound/pci/cs5535audio/Makefile
@@ -4,10 +4,7 @@
 
 snd-cs5535audio-y := cs5535audio.o cs5535audio_pcm.o
 snd-cs5535audio-$(CONFIG_PM) += cs5535audio_pm.o
-
-ifdef CONFIG_OLPC
-snd-cs5535audio-objs += cs5535audio_olpc.o
-endif
+snd-cs5535audio-$(CONFIG_OLPC) += cs5535audio_olpc.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_CS5535AUDIO) += snd-cs5535audio.o