vc/amd/opensil/genoa_poc/memmap: use GiB define

Use the GiB define to make the 4 GiB boundary used in some places in the
code a bit easier to read.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I81877a5d293c883d2e31bdb18ae3b22b8a44e62f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81093
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Varshit Pandya <pandyavarshit@gmail.com>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

0 files changed, 0 insertions, 0 deletions