vboot_reference/cgpt_nor: Make ForkExecL() static local
vboot_reference/cgpt_nor: Make ForkExecL() static local

BUG=none
TEST=builds

Signed-off-by: Edward O'Callaghan <5ed2e9bf3d98d5f12a86c198971e1dafd1bbd008@google.com>
Change-Id: Ied809d3c2839f33d738d1938cafd6c634d54ee28
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3353558
Commit-Queue: Edward O'Callaghan <5ed2e9bf3d98d5f12a86c198971e1dafd1bbd008@chromium.org>
Tested-by: Edward O'Callaghan <5ed2e9bf3d98d5f12a86c198971e1dafd1bbd008@chromium.org>
Auto-Submit: Edward O'Callaghan <5ed2e9bf3d98d5f12a86c198971e1dafd1bbd008@chromium.org>
Reviewed-by: Nikolai Artemiev <ae95c3c53a91f37eed715bc8c4b874a04007f68d@google.com>
Commit-Queue: Nikolai Artemiev <ae95c3c53a91f37eed715bc8c4b874a04007f68d@google.com>

coreboot/vboot,coreboot/vboot,coreboot/vboot,coreboot/vboot,coreboot/vboot