nb/intel/sandybridge: Add support for DPR

Include DPR in the memory map calculations if enabled. DPR is required
for Intel TXT support.

TEST=Boot Debian 10 and see the DPR memory being reserved in E820 and
cbmem logs:
"BIOS-e820: [mem 0x000000007fc09000-0x00000000829fffff] reserved"
"TSEG base 0x80000000 size 8M"
"DPR base 0x7fd00000 size 3M"

Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: Ia22e49ba58709acfa0afe0921aa71d83cc06c129
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59512
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

0 files changed, 0 insertions, 0 deletions