AR7 watchdog supports magic close

This patch adds the magic close flag (stopping the watchdog on an expected close
by wrting 'V' to the device before closing it) to the watchdogs list, which the
AR7 watchdog code actually supports.

Signed-off-by: Axel Gembe <ago@bastart.eu.org>

SVN-Revision: 12666

target/linux/ar7/files/drivers/char/watchdog/ar7_wdt.c

@@ -243,7 +243,7 @@ static int ar7_wdt_ioctl(struct inode *inode, struct file *file,
 	static struct watchdog_info ident = {
 		.identity = LONGNAME,
 		.firmware_version = 1,
-		.options = (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING),
+		.options = (WDIOF_SETTIMEOUT | WDIOF_MAGICCLOSE | WDIOF_KEEPALIVEPING),
 	};
 	int new_margin;