ram: rk3399: fix error about get_ddrc0_con reg addr

Correct the register to its correct name.

Signed-off-by: YouMin Chen <cym@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 74ac73d..ffc266a 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -232,7 +232,7 @@
 
 static void *get_ddrc0_con(struct dram_info *dram, u8 channel)
 {
-	return (channel == 0) ? &dram->grf->ddrc0_con0 : &dram->grf->ddrc0_con1;
+	return (channel == 0) ? &dram->grf->ddrc0_con0 : &dram->grf->ddrc1_con0;
 }
 
 static void rkclk_ddr_reset(struct rk3399_cru *cru, u32 channel, u32 ctl,