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/board/MAI/AmigaOneG3SE/video.c b/board/MAI/AmigaOneG3SE/video.c
index fc27c68..e24e28b 100644
--- a/board/MAI/AmigaOneG3SE/video.c
+++ b/board/MAI/AmigaOneG3SE/video.c
@@ -22,7 +22,7 @@
  */
 
 #include <common.h>
-#include <devices.h>
+#include <stdio_dev.h>
 #include "memio.h"
 #include <part.h>
 
@@ -98,7 +98,7 @@
 int drv_video_init(void)
 {
     int error, devices = 1 ;
-    device_t vgadev ;
+    struct stdio_dev vgadev ;
     if (video_inited) return 1;
     video_inited = 1;
     video_init();
@@ -112,7 +112,7 @@
     vgadev.tstc = NULL;
     vgadev.start = video_start;
 
-    error = device_register (&vgadev);
+    error = stdio_register (&vgadev);
 
     if (error == 0)
     {