arch/x86: Fix id section in linker script

Builds where RESET_X86_VECTOR is adjusted would create unintentionally
large bootblock files since id section can move far away from .reset
and .text. Some builds segfault or may try to create close to 4 GB
large intermediate build objects.

For cases where build is successful, id section would not reside within
REGION(program) or REGION(bootblock).

A proper fix to always place the ID data at the end of the coreboot.rom
file is left as follow-up work. For now, just place id section below
.reset.

Change-Id: Idf0e4defcde6d5e264d4752cc93f4ffb6749d287
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40583
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

src/arch/x86/id.ld

@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 SECTIONS {
-	. = (0xffffffff - CONFIG_ID_SECTION_OFFSET) - (__id_end - __id_start) + 1;
+	. = (CONFIG_X86_RESET_VECTOR - CONFIG_ID_SECTION_OFFSET) + 0x10 - (__id_end - __id_start);
 	.id (.): {
 		KEEP(*(.id))
 	}