[ALSA] Clean up Makefile

Clean up Makefile using xxx- style instead of
ifeq(CONFIG_XXX,y).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

sound/pci/cs46xx/Makefile

@@ -3,10 +3,8 @@
 # Copyright (c) 2001 by Jaroslav Kysela <perex@suse.cz>
 #
 
-snd-cs46xx-objs := cs46xx.o cs46xx_lib.o
-ifeq ($(CONFIG_SND_CS46XX_NEW_DSP),y)
-  snd-cs46xx-objs += dsp_spos.o dsp_spos_scb_lib.o
-endif
+snd-cs46xx-y := cs46xx.o cs46xx_lib.o
+snd-cs46xx-$(CONFIG_SND_CS46XX_NEW_DSP) += dsp_spos.o dsp_spos_scb_lib.o
 
 # Toplevel Module Dependency
 obj-$(CONFIG_SND_CS46XX) += snd-cs46xx.o