watchdog: cleanup spaces before tabs

cleanup spaces before tabs in drivers/watchdog/

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 3053ff0..7a82ce5 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -41,7 +41,7 @@
  * to ping the watchdog.
  */
 #define MAX6369_WDSET	(7 << 0)
-#define MAX6369_WDI   	(1 << 3)
+#define MAX6369_WDI	(1 << 3)
 
 static DEFINE_SPINLOCK(io_lock);