[Detail] System processes have no permission to access
vendor_default_prop
[Solution] Add get vendor_default_prop rule for system
processes
MTK-Commit-Id: 412119fb578fc32e9f046c09a13817cf3c755515
Change-Id: I791997e6bb44c61b69d32c6da0cc80c6f2a9759e
CR-Id: ALPS03825066
Feature: [Android Default] SELinux, SEAndroid, and SE-MTK