Add basic support to specify login TTYs in configuration

This also adds support for monitor /dev for TTYs appering after boot,
USB-to-serial converters for example.

Some limitations: Baudrate (and other settings) is hardcoded for now,
should be read from config file.

conf.c

@@ -31,7 +31,6 @@
 #define MATCH_CMD(l, c, x)					\
 	(!strncmp(l, c, strlen(c)) && (x = (l) + strlen(c)))
 
-
 static char *build_cmd(char *cmd, char *line, int len)
 {
 	int l;
@@ -135,6 +134,20 @@ void parse_finit_conf(char *file)
 				svc_register(x, NULL);
 				continue;
 			}
+
+			if (MATCH_CMD(line, "console ", x)) {
+				if (console) free(console);
+				console = build_cmd(NULL, x, CMD_SIZE);
+				continue;
+			}
+
+			if (MATCH_CMD(line, "tty ", x)) {
+				char *tty = build_cmd(NULL, x, CMD_SIZE);
+				int baud = 115200; /* TODO: Read from config file. */
+
+				tty_add(tty, baud);
+				continue;
+			}
 		}
 		fclose(fp);
 	}