armv8/ls2085aqds: Add support of LS2085AQDS platform

The LS2085AQDS is an evaluatoin platform that supports the LS2085A
family SoCs. This patch add basic support of the platform.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
diff --git a/include/fsl_ddr_sdram.h b/include/fsl_ddr_sdram.h
index 6358b6f..e5b6e03 100644
--- a/include/fsl_ddr_sdram.h
+++ b/include/fsl_ddr_sdram.h
@@ -167,6 +167,7 @@
 #define DDR_CDR2_ODT(x) (x & DDR_CDR2_ODT_MASK)
 #define DDR_CDR2_VREF_OVRD(x)	(0x00008080 | ((((x) - 37) & 0x3F) << 8))
 #define DDR_CDR2_VREF_TRAIN_EN	0x00000080
+#define DDR_CDR2_VREF_RANGE_2	0x00000040
 
 #if (defined(CONFIG_SYS_FSL_DDR_VER) && \
 	(CONFIG_SYS_FSL_DDR_VER >= FSL_DDR_VER_4_7))