lib/coreboot_table: use the architecture dependent table size

Utilize the architecture dependent coreboot table size value
from <arch/cbconfig.h>

Change-Id: I80d51a5caf7c455b0b47c380e1d79cf522502a4c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14455
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)

src/arch/arm/include/arch/cbconfig.h

@@ -23,4 +23,6 @@
  * to have the same name across all architectures.
  */
 
+#define COREBOOT_TABLE_SIZE 0x2000
+
 #endif

src/arch/arm64/include/arch/cbconfig.h

@@ -23,4 +23,6 @@
  * to have the same name across all architectures.
  */
 
+#define COREBOOT_TABLE_SIZE 0x2000
+
 #endif

src/arch/mips/include/arch/cbconfig.h

@@ -23,4 +23,6 @@
  * to have the same name across all architectures.
  */
 
+#define COREBOOT_TABLE_SIZE 0x2000
+
 #endif

src/arch/power8/include/arch/cbconfig.h

@@ -23,4 +23,6 @@
  * to have the same name across all architectures.
  */
 
+#define COREBOOT_TABLE_SIZE 0x2000
+
 #endif

src/arch/riscv/include/arch/cbconfig.h

@@ -23,4 +23,6 @@
  * to have the same name across all architectures.
  */
 
+#define COREBOOT_TABLE_SIZE 0x2000
+
 #endif

src/arch/x86/include/arch/cbconfig.h

@@ -23,4 +23,6 @@
  * to have the same name across all architectures.
  */
 
+#define COREBOOT_TABLE_SIZE 0x8000
+
 #endif