[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/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index e1c8276..2852bb2 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -145,7 +145,7 @@
 	return 0;
 }
 
-static struct watchdog_info ks8695_wdt_info = {
+static const struct watchdog_info ks8695_wdt_info = {
 	.identity	= "ks8695 watchdog",
 	.options	= WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
 };