Revert "sudo: sudo needs /var/db/sudo instead of /var/lib/sudo"

This reverts commit 66a9f8606067ead63d16a1272135e25d495d1c21.
sudo: use hardcoded /var/lib instead of getting from compiling host
Signed-off-by: Julen Landa Alustiza <julen@zokormazo.info>