Add dummy battery module to the system...

Hopefully this can be modified to create the actual code needed to
monitor the battery of the argon-oneUp.

battery/Makefile

@@ -0,0 +1,7 @@
+obj-m += dummy_battery.o
+
+# Build with:
+#   make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules
+# Clean:
+#   make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
+