soc/intel/denverton_ns: Don't use CONFIG_CBFS_SIZE

CONFIG_CBFS_SIZE is only meaningful to generate the default fmap
layout and ought not to be used in the code directly.

Change-Id: Iae72a9fb02d62d7548d34689f5eb371f34cd3d81
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31249
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: David Guckian
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/denverton_ns/bootblock/bootblock.c b/src/soc/intel/denverton_ns/bootblock/bootblock.c
index f16ee20..57e3a2e 100644
--- a/src/soc/intel/denverton_ns/bootblock/bootblock.c
+++ b/src/soc/intel/denverton_ns/bootblock/bootblock.c
@@ -37,8 +37,8 @@
 			.MicrocodeRegionLength =
 				(UINT32)CONFIG_CPU_MICROCODE_CBFS_LEN,
 			.CodeRegionBase =
-				(UINT32)(0x100000000ULL - CONFIG_CBFS_SIZE),
-			.CodeRegionLength = (UINT32)CONFIG_CBFS_SIZE,
+				(UINT32)(0x100000000ULL - CONFIG_ROM_SIZE),
+			.CodeRegionLength = (UINT32)CONFIG_ROM_SIZE,
 			.Reserved1 = {0},
 	},
 	.FsptConfig = {