[nrf fromtree] samples: drivers: watchdog: Pause during debugging

Enable the option to pause the watchdog if the MCU is halted by a
debugger.

This fixes an issue with some Nordic MCUs (see zephyrproject-rtos#33509) where the board
could not be flashed anymore if a short watchdog timeout (<100 ms) was
used.

Signed-off-by: Martin Jäger <[email protected]>

cherry-picked from 784e684

Signed-off-by: Maciej Perkowski [email protected]

samples/drivers/watchdog/src/main.c

@@ -123,7 +123,7 @@ void main(void)
  return;
  }
 
- err = wdt_setup(wdt, 0);
+ err = wdt_setup(wdt, WDT_OPT_PAUSE_HALTED_BY_DBG);
  if (err < 0) {
  printk("Watchdog setup error\n");
  return;