watchdog: hpwdt: Assign boolean values to a bool variable

Fix the following coccicheck warnings:

 ./drivers/watchdog/hpwdt.c:345:2-12: WARNING: Assignment of
0/1 to bool variable.

./drivers/watchdog/hpwdt.c:126:2-12: WARNING: Assignment of
0/1 to bool variable.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Zhong <abaci-bugfix@linux.alibaba.com>
Reviewed-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/1611128890-79204-1-git-send-email-abaci-bugfix@linux.alibaba.comSigned-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

drivers/watchdog/hpwdt.c

@@ -123,7 +123,7 @@ static int hpwdt_settimeout(struct watchdog_device *wdd, unsigned int val)
 	if (val <= wdd->pretimeout) {
 		dev_dbg(wdd->parent, "pretimeout < timeout. Setting to zero\n");
 		wdd->pretimeout = 0;
-		pretimeout = 0;
+		pretimeout = false;
 		if (watchdog_active(wdd))
 			hpwdt_start(wdd);
 	}
@@ -336,13 +336,13 @@ static int hpwdt_init_one(struct pci_dev *dev,
 	watchdog_init_timeout(&hpwdt_dev, soft_margin, NULL);
 
 	if (is_kdump_kernel()) {
-		pretimeout = 0;
+		pretimeout = false;
 		kdumptimeout = 0;
 	}
 
 	if (pretimeout && hpwdt_dev.timeout <= PRETIMEOUT_SEC) {
 		dev_warn(&dev->dev, "timeout <= pretimeout. Setting pretimeout to zero\n");
-		pretimeout = 0;
+		pretimeout = false;
 	}
 	hpwdt_dev.pretimeout = pretimeout ? PRETIMEOUT_SEC : 0;
 	kdumptimeout = min(kdumptimeout, HPWDT_MAX_TIMER);