greybus: fix up coding style issue I caused with the last patch...
diff --git a/drivers/staging/greybus/gbuf.c b/drivers/staging/greybus/gbuf.c
index b51bd2a..46896e8 100644
--- a/drivers/staging/greybus/gbuf.c
+++ b/drivers/staging/greybus/gbuf.c
@@ -139,8 +139,8 @@
 	struct gbuf *gbuf = container_of(work, struct gbuf, event);
 
 	/* Call the completion handler, then drop our reference */
- 	gbuf->complete(gbuf);
- 	greybus_put_gbuf(gbuf);
+	gbuf->complete(gbuf);
+	greybus_put_gbuf(gbuf);
 }
 
 #define MAX_CPORTS	1024