console: Fix includes

Do not pull in console hw-specific prototypes everywhere
with console.h as those are not needed for higher levels.

Move prototypes for UARTs next to other consoles.

Change-Id: Icbc9cd3e5bdfdab85d7dccd7c3827bba35248fb8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5232
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/lib/uart8250.c b/src/lib/uart8250.c
index d136eb8..3171e00 100644
--- a/src/lib/uart8250.c
+++ b/src/lib/uart8250.c
@@ -19,7 +19,7 @@
  */
 
 #include <arch/io.h>
-#include <uart.h>
+#include <console/uart.h>
 #include <uart8250.h>
 #include <trace.h>