[Feature]add MT2731_MP2_MR2_SVN388 baseline version

Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/sound/usb/6fire/Makefile b/src/kernel/linux/v4.14/sound/usb/6fire/Makefile
new file mode 100644
index 0000000..dfce6ec
--- /dev/null
+++ b/src/kernel/linux/v4.14/sound/usb/6fire/Makefile
@@ -0,0 +1,3 @@
+snd-usb-6fire-objs += chip.o comm.o midi.o control.o firmware.o pcm.o
+obj-$(CONFIG_SND_USB_6FIRE) += snd-usb-6fire.o
+