spd_bin.h: Use same macro for DDR3 and LPDDR3

DDR3 and LPDDR3 share the same PART_NUM and PART_LEN.
So use the same macro.
This is to prepare SPD de-duplication in following patch.

Change-Id: Iea824a847b5072b1cbaa38dc38deae1d484d5b16
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82409
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <ericllai@google.com>
diff --git a/src/include/spd_bin.h b/src/include/spd_bin.h
index d0cdefc..c51e449 100644
--- a/src/include/spd_bin.h
+++ b/src/include/spd_bin.h
@@ -3,6 +3,7 @@
 #ifndef SPD_BIN_H
 #define SPD_BIN_H
 
+#include <device/dram/ddr3.h>
 #include <stdint.h>
 #include <commonlib/region.h>
 
@@ -27,11 +28,11 @@
 #define DDR3_BUS_DEV_WIDTH	8
 #define DDR4_ORGANIZATION	12
 #define DDR4_BUS_DEV_WIDTH	13
-#define DDR3_SPD_PART_OFF	128
-#define DDR3_SPD_PART_LEN	18
+#define DDR3_SPD_PART_OFF	SPD_DDR3_PART_NUM
+#define DDR3_SPD_PART_LEN	SPD_DDR3_PART_LEN
 #define DDR3_SPD_SN_OFF		122
-#define LPDDR3_SPD_PART_OFF	128
-#define LPDDR3_SPD_PART_LEN	18
+#define LPDDR3_SPD_PART_OFF	SPD_DDR3_PART_NUM
+#define LPDDR3_SPD_PART_LEN	SPD_DDR3_PART_LEN
 #define DDR4_SPD_PART_OFF	329
 #define DDR4_SPD_PART_LEN	20
 #define DDR4_SPD_SN_OFF		325