FRV: Be (self-)consistent and use CONFIG_GDB_CONSOLE everywhere

Be (self-)consistent and use CONFIG_GDB_CONSOLE everywhere rather than using
CONFIG_GDBSTUB_CONSOLE in some places and not others.  This is also then
consistent with other archs.

Also remove the gdbstub console device() op which doesn't seem to be necessary
now (especially as it doesn't compile).

[Found by Robert P. J. Day <rpjday@mindspring.com>]
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/frv/kernel/gdb-stub.c

@@ -647,17 +647,11 @@ void debug_to_serial(const char *p, int n)
 }
 #endif
 
-#ifdef CONFIG_GDBSTUB_CONSOLE
-
-static kdev_t gdbstub_console_dev(struct console *con)
-{
-	return MKDEV(1,3); /* /dev/null */
-}
+#ifdef CONFIG_GDB_CONSOLE
 
 static struct console gdbstub_console = {
 	.name	= "gdb",
 	.write	= gdbstub_console_write,	/* in break.S */
-	.device	= gdbstub_console_dev,
 	.flags	= CON_PRINTBUFFER,
 	.index	= -1,
 };
@@ -2021,7 +2015,7 @@ void __init gdbstub_init(void)
 	ptr = mem2hex(gdbstub_banner, ptr, sizeof(gdbstub_banner) - 1, 0);
 	gdbstub_send_packet(output_buffer);
 #endif
-#if defined(CONFIG_GDBSTUB_CONSOLE) && defined(CONFIG_GDBSTUB_IMMEDIATE)
+#if defined(CONFIG_GDB_CONSOLE) && defined(CONFIG_GDBSTUB_IMMEDIATE)
 	register_console(&gdbstub_console);
 #endif
 
@@ -2031,7 +2025,7 @@ void __init gdbstub_init(void)
 /*
  * register the console at a more appropriate time
  */
-#if defined (CONFIG_GDBSTUB_CONSOLE) && !defined(CONFIG_GDBSTUB_IMMEDIATE)
+#if defined (CONFIG_GDB_CONSOLE) && !defined(CONFIG_GDBSTUB_IMMEDIATE)
 static int __init gdbstub_postinit(void)
 {
 	printk("registering console\n");