[ARM SMP] mpcore_wdt bogus fpos check

drivers/char/watchdog/mpcore_wdt.c write function contains a check for
(ppos != &file->f_pos). Such check used to make sense when a pointer to
file->f_pos was handed by vfs_write(), not a copy of it as it stands
now.
Signed-off-by: NMarcelo Tosatti <marcelo.tosatti@cyclades.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

drivers/char/watchdog/mpcore_wdt.c

@@ -180,10 +180,6 @@ static ssize_t mpcore_wdt_write(struct file *file, const char *data, size_t len,
 {
 	struct mpcore_wdt *wdt = file->private_data;
 
-	/*  Can't seek (pwrite) on this device  */
-	if (ppos != &file->f_pos)
-		return -ESPIPE;
-
 	/*
 	 *	Refresh the timer.
 	 */