stdio/device: rework function naming convention

So far the console API uses the following naming convention:

	======Extract======
	typedef struct device_t;

	int	device_register (device_t * dev);
	int	devices_init (void);
	int	device_deregister(char *devname);
	struct list_head* device_get_list(void);
	device_t* device_get_by_name(char* name);
	device_t* device_clone(device_t *dev);
	=======

which is too generic and confusing.

Instead of using device_XX and device_t we change this
into stdio_XX and stdio_dev

This will also allow to add later a generic device mechanism in order
to have support for multiple devices and driver instances.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Edited commit message.

Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/common/Makefile b/common/Makefile
index c8a997b..f90e5dd 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -32,7 +32,6 @@
 COBJS-y += circbuf.o
 COBJS-y += console.o
 COBJS-y += command.o
-COBJS-y += devices.o
 COBJS-y += dlmalloc.o
 COBJS-y += exports.o
 COBJS-$(CONFIG_SYS_HUSH_PARSER) += hush.o
@@ -40,6 +39,7 @@
 COBJS-y += memsize.o
 COBJS-y += s_record.o
 COBJS-$(CONFIG_SERIAL_MULTI) += serial.o
+COBJS-y += stdio.o
 COBJS-y += xyzModem.o
 
 # core command