[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/indydog.c b/drivers/watchdog/indydog.c
index bea8a12..1cc5609 100644
--- a/drivers/watchdog/indydog.c
+++ b/drivers/watchdog/indydog.c
@@ -111,7 +111,7 @@
 							unsigned long arg)
 {
 	int options, retval = -EINVAL;
-	static struct watchdog_info ident = {
+	static const struct watchdog_info ident = {
 		.options		= WDIOF_KEEPALIVEPING,
 		.firmware_version	= 0,
 		.identity		= "Hardware Watchdog for SGI IP22",