spi/mips-lantiq: make use of spi_finalize_current_message

Rather than calling m->complete() directly we choose the sane way and call
spi_finalize_current_message instead.

Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/spi/spi-falcon.c b/drivers/spi/spi-falcon.c
index 6a6f62e..f9c66c2 100644
--- a/drivers/spi/spi-falcon.c
+++ b/drivers/spi/spi-falcon.c
@@ -398,7 +398,7 @@
 	}
 
 	m->status = ret;
-	m->complete(m->context);
+	spi_finalize_current_message(master);
 
 	return 0;
 }