ALSA: Echoaudio: add support for Indigo express cards

This patch adds support for IndigoIOx and IndigoDJx.

Signed-off-by: Giuliano Pochini <pochini@shiny.it>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/echoaudio/Makefile b/sound/pci/echoaudio/Makefile
index 7b576ae..1361de7 100644
--- a/sound/pci/echoaudio/Makefile
+++ b/sound/pci/echoaudio/Makefile
@@ -15,6 +15,8 @@
 snd-indigo-objs := indigo.o
 snd-indigoio-objs := indigoio.o
 snd-indigodj-objs := indigodj.o
+snd-indigoiox-objs := indigoiox.o
+snd-indigodjx-objs := indigodjx.o
 
 obj-$(CONFIG_SND_DARLA20) += snd-darla20.o
 obj-$(CONFIG_SND_GINA20) += snd-gina20.o
@@ -28,3 +30,5 @@
 obj-$(CONFIG_SND_INDIGO) += snd-indigo.o
 obj-$(CONFIG_SND_INDIGOIO) += snd-indigoio.o
 obj-$(CONFIG_SND_INDIGODJ) += snd-indigodj.o
+obj-$(CONFIG_SND_INDIGOIOX) += snd-indigoiox.o
+obj-$(CONFIG_SND_INDIGODJX) += snd-indigodjx.o