ddr: marvell: a38x: import header change from upstream

commit 3908e20c6c520339e9bddb566823ae5e065d5218 upstream.

The commit mentioned above changes non-DDR3 stuff in upstream, but it
also changes header ddr_topology_def.h.

Import this header change to remain consistent with upstream.
Signed-off-by: NMarek Behún <marek.behun@nic.cz>
Tested-by: NChris Packham <chris.packham@alliedtelesis.co.nz>

drivers/ddr/marvell/a38x/ddr_topology_def.h

@@ -152,6 +152,11 @@ enum mv_ddr_validation {
 	MV_DDR_MEMORY_CHECK
 };
 
+enum mv_ddr_sscg {
+	SSCG_EN,
+	SSCG_DIS,
+};
+
 struct mv_ddr_iface {
 	/* base addr of ap ddr interface belongs to */
 	unsigned int ap_base;
@@ -180,6 +185,9 @@ struct mv_ddr_iface {
 	/* ddr interface validation mode */
 	enum mv_ddr_validation validation;
 
+	/* ddr interface validation mode */
+	enum mv_ddr_sscg sscg;
+
 	/* ddr interface topology map */
 	struct mv_ddr_topology_map tm;
 };