jlink: Make use of debug level for I/O messages

Change-Id: Iba08c119a80041f9c1b4c9bd7e83bb4f9bbb7199
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/4203
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

src/jtag/drivers/jlink.c

@@ -523,6 +523,9 @@ static int jaylink_log_handler(const struct jaylink_context *ctx,
 	case JAYLINK_LOG_LEVEL_DEBUG:
 		tmp = LOG_LVL_DEBUG;
 		break;
+	case JAYLINK_LOG_LEVEL_DEBUG_IO:
+		tmp = LOG_LVL_DEBUG_IO;
+		break;
 	default:
 		tmp = LOG_LVL_WARNING;
 	}