ASoC: Fix sorting of codecs Makefile entries

obj-$(CONFIG_SND_SOC_WM8900)	+= snd-soc-wm8900.o

obj-$(CONFIG_SND_SOC_WM8903)	+= snd-soc-wm8903.o

obj-$(CONFIG_SND_SOC_WM8904)	+= snd-soc-wm8904.o

obj-$(CONFIG_SND_SOC_WM8971)	+= snd-soc-wm8971.o

obj-$(CONFIG_SND_SOC_WM8974)	+= snd-soc-wm8974.o

obj-$(CONFIG_SND_SOC_WM8940)	+= snd-soc-wm8940.o

obj-$(CONFIG_SND_SOC_WM8960)	+= snd-soc-wm8960.o

obj-$(CONFIG_SND_SOC_WM8961)	+= snd-soc-wm8961.o

obj-$(CONFIG_SND_SOC_WM8971)	+= snd-soc-wm8971.o

obj-$(CONFIG_SND_SOC_WM8974)	+= snd-soc-wm8974.o

obj-$(CONFIG_SND_SOC_WM8988)	+= snd-soc-wm8988.o

obj-$(CONFIG_SND_SOC_WM8990)	+= snd-soc-wm8990.o

obj-$(CONFIG_SND_SOC_WM8993)	+= snd-soc-wm8993.o