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/lib_arm/board.c b/lib_arm/board.c
index 566ae16..a44d308 100644
--- a/lib_arm/board.c
+++ b/lib_arm/board.c
@@ -41,7 +41,7 @@
 #include <common.h>
 #include <command.h>
 #include <malloc.h>
-#include <devices.h>
+#include <stdio_dev.h>
 #include <timestamp.h>
 #include <version.h>
 #include <net.h>
@@ -389,7 +389,7 @@
 	/* IP Address */
 	gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr");
 
-	devices_init ();	/* get the devices list going. */
+	stdio_init ();	/* get the devices list going. */
 
 	jumptable_init ();