Android.bp: Make crossystem default to /vendor partition

crossystem was intended to live on /vendor partition from the beginning.
Incorrect option was applied making it /vendor optional and /system
default. This CL fixes this issue.

BRANCH=None
BUG=None
TEST=Build android image and see /vendor/bin/crossystem

Change-Id: I8048da9ee6ca5e659d36cc8918833c7d1ce2c325
Signed-off-by: Jakub Czapiga <[email protected]>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/6264664
Reviewed-by: Konrad Adamczyk <[email protected]>
Reviewed-by: Yu-Ping Wu <[email protected]>
1 file changed