Makefile: Fix missed boolean flags

Fix flags missed in CL:3306615.

BUG=b:206031372
TEST=make runtests
TEST=sudo emerge-guybrush sys-boot/depthcharge
BRANCH=none

Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: Idbb205bb9e14f44a10806785fb9f7b29572f0626
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/3347667
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
Tested-by: Jakub Czapiga <czapiga@google.com>
Commit-Queue: Jakub Czapiga <czapiga@google.com>
1 file changed