ddr: marvell: a38x: import header change from upstream

commit 6c705ebc0d70f67ed7cae83ad1978c3305ef25be upstream.

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

Import this header change to remain consistent with upstream.

Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
diff --git a/drivers/ddr/marvell/a38x/mv_ddr_topology.h b/drivers/ddr/marvell/a38x/mv_ddr_topology.h
index 4fca476..1cb69ad 100644
--- a/drivers/ddr/marvell/a38x/mv_ddr_topology.h
+++ b/drivers/ddr/marvell/a38x/mv_ddr_topology.h
@@ -179,7 +179,9 @@
 
 /* phy electrical configuration values */
 enum mv_ddr_ohm_evalue {
+	MV_DDR_OHM_20 = 20,/*relevant for Synopsys C/A Drive strength only*/
 	MV_DDR_OHM_30 = 30,
+	MV_DDR_OHM_40 = 40,/*relevant for Synopsys C/A Drive strength only*/
 	MV_DDR_OHM_48 = 48,
 	MV_DDR_OHM_60 = 60,
 	MV_DDR_OHM_80 = 80,