[WATCHDOG] watchdog_info constify

make the watchdog_info struct const where possible.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c
index 71f6d7e..edd3475 100644
--- a/drivers/watchdog/cpu5wdt.c
+++ b/drivers/watchdog/cpu5wdt.c
@@ -154,7 +154,7 @@
 	void __user *argp = (void __user *)arg;
 	int __user *p = argp;
 	unsigned int value;
-	static struct watchdog_info ident = {
+	static const struct watchdog_info ident = {
 		.options = WDIOF_CARDRESET,
 		.identity = "CPU5 WDT",
 	};