More SG build fixes

Signed-off-by: Jens Axboe <axboe@carl.home.kernel.dk>
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 7276f7d..fac4c6c 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -15,6 +15,7 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/list.h>
+#include <linux/scatterlist.h>
 
 #include <asm/vio.h>
 #include <asm/ldc.h>