[UPX] Add additional SPD data for 4GB memory configuration

This patch added 4GB SPD data for UPX board. It also renamed the
original 8GB SPD data file.

Signed-off-by: Maurice Ma <maurice.ma@intel.com>

Platform/CoffeelakeBoardPkg/CfgData/CfgData_MemSpd.dsc

@@ -15,7 +15,7 @@
   # !BSF OPTION:{ 0:1:HEX, 1:1:HEX, 2:1:HEX, 3:1:HEX, 4:1:HEX, 5:1:HEX, 6:1:HEX, 7:1:HEX,}
   # !BSF OPTION:{+ 8:1:HEX, 9:1:HEX, A:1:HEX, B:1:HEX, C:1:HEX, D:1:HEX, E:1:HEX, F:1:HEX}
   # !BSF HELP:{Pointer to SPD data in Memory}
-  gCfgData.MemorySpdPtr0                   |      * | 0x200 | {FILE: Spd_Upx.bin}
+  gCfgData.MemorySpdPtr0                   |      * | 0x200 | {FILE: Spd_Upx8G.bin}
   # !HDR EMBED:{MEM_SPD0_CFG_DATA:TAG_8F0:END}
 
   # !BSF SUBT:{CFGHDR_TMPL:MEM_SPD1_CFG_DATA:0:0}
@@ -25,5 +25,5 @@
   # !BSF OPTION:{ 0:1:HEX, 1:1:HEX, 2:1:HEX, 3:1:HEX, 4:1:HEX, 5:1:HEX, 6:1:HEX, 7:1:HEX,}
   # !BSF OPTION:{+ 8:1:HEX, 9:1:HEX, A:1:HEX, B:1:HEX, C:1:HEX, D:1:HEX, E:1:HEX, F:1:HEX}
   # !BSF HELP:{Pointer to SPD data in Memory}
-  gCfgData.MemorySpdPtr1                   |      * | 0x200 | {FILE: Spd_Upx.bin}
+  gCfgData.MemorySpdPtr1                   |      * | 0x200 | {FILE: Spd_Upx4G.bin}
   # !HDR EMBED:{MEM_SPD1_CFG_DATA:TAG_8F1:END}