staging: greybus: svc_watchdog: Fix spaces on a single definition statement

Fix coding style issue caught by checkpatch.pl related to the following
warning:
	- "CHECK: spaces preferred around that '*' (ctx:VxV) "
Signed-off-by: Emmanuil Chatzipetru <chatzi.emanuel@gmail.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/greybus/svc_watchdog.c

@@ -11,7 +11,7 @@
 #include <linux/workqueue.h>
 #include "greybus.h"
 
-#define SVC_WATCHDOG_PERIOD	(2*HZ)
+#define SVC_WATCHDOG_PERIOD	(2 * HZ)
 
 struct gb_svc_watchdog {
 	struct delayed_work	work;