spl_sata.c: Add <scsi.h>

We need <scsi.h> for scsi_scan().

Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/common/spl/spl_sata.c b/common/spl/spl_sata.c
index aeea793..d9eb2d6 100644
--- a/common/spl/spl_sata.c
+++ b/common/spl/spl_sata.c
@@ -13,6 +13,7 @@
 #include <spl.h>
 #include <asm/u-boot.h>
 #include <sata.h>
+#include <scsi.h>
 #include <fat.h>
 #include <version.h>
 #include <image.h>