sandbox: Don't disable ctrlc() on sandbox if in raw mode

In raw mode, handle ctrl-c as normal. This allows normal ctrl-c behavior
such as aborting a command that is timing out without completely
terminating the sandbox executable.

In [1], Simon disabled this.  His reason for it was that it interferes
with piping test scripts. Piping should be done in cooked mode, so this
change should still not interfere.

[1] commit 8969ea3e ("sandbox: Disable Ctrl-C")
Signed-off-by: NJoe Hershberger <joe.hershberger@ni.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

common/console.c

@@ -604,7 +604,6 @@ static int ctrlc_disabled = 0;	/* see disable_ctrl() */
 static int ctrlc_was_pressed = 0;
 int ctrlc(void)
 {
-#ifndef CONFIG_SANDBOX
 	if (!ctrlc_disabled && gd->have_console) {
 		if (tstc()) {
 			switch (getc()) {
@@ -616,7 +615,6 @@ int ctrlc(void)
 			}
 		}
 	}
-#endif
 
 	return 0;
 }

drivers/serial/sandbox.c

@@ -10,6 +10,7 @@
  */
 
 #include <common.h>
+#include <console.h>
 #include <dm.h>
 #include <fdtdec.h>
 #include <lcd.h>
@@ -69,6 +70,9 @@ static int sandbox_serial_probe(struct udevice *dev)
 		os_tty_raw(0, state->term_raw == STATE_TERM_RAW_WITH_SIGS);
 	priv->start_of_line = 0;
 
+	if (state->term_raw != STATE_TERM_RAW)
+		disable_ctrlc(1);
+
 	return 0;
 }