[ALSA] soc - ln2440sbc ac97 support

This patch adds ac97 support for ln2440sbc board from LittleChips.
This board is based on s3c2440 SoC + AC97 Realtek ALC650 codec.
Existing s3c2443 implementation is slightly modified because s3c2440
and s3c2443 have different AC97 interrupts.

Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile
index 13c92f0..9471919 100644
--- a/sound/soc/s3c24xx/Makefile
+++ b/sound/soc/s3c24xx/Makefile
@@ -10,6 +10,8 @@
 # S3C24XX Machine Support
 snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o
 snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o
+snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o
 
 obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
 obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o
+obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o