rose: cleanup checkpatch errors,spaces required

This patch add spaces to cleanup checkpatch errors.

Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rose/rose_dev.c b/net/rose/rose_dev.c
index 28dbdb9..5000588 100644
--- a/net/rose/rose_dev.c
+++ b/net/rose/rose_dev.c
@@ -146,7 +146,7 @@
 
 static const struct header_ops rose_header_ops = {
 	.create	= rose_header,
-	.rebuild= rose_rebuild_header,
+	.rebuild = rose_rebuild_header,
 };
 
 static const struct net_device_ops rose_netdev_ops = {