[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/geodewdt.c b/drivers/watchdog/geodewdt.c
index 38252ff..9b49b12 100644
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -142,7 +142,7 @@
 	int __user *p = argp;
 	int interval;
 
-	static struct watchdog_info ident = {
+	static const struct watchdog_info ident = {
 		.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING
 		| WDIOF_MAGICCLOSE,
 		.firmware_version =     1,