console: Use romstage code for ramstage and SMM

Console is arch-agnostic and there is no need for separate
implementations for romstage and ramstage.

For SMM there is console only if DEBUG_SMI is selected.

Change-Id: I7028eeeff8bfbb9c8552972436b29a7508834d87
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5338
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
diff --git a/src/include/console/streams.h b/src/include/console/streams.h
new file mode 100644
index 0000000..288fade
--- /dev/null
+++ b/src/include/console/streams.h
@@ -0,0 +1,25 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef _CONSOLE_STREAMS_H_
+#define _CONSOLE_STREAMS_H_
+
+void console_hw_init(void);
+void console_tx_byte(unsigned char byte);
+void console_tx_flush(void);
+
+#endif /* _CONSOLE_STREAMS_H_ */