[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
[Detail]
1. remove md_ctrl.te because we dont use md_ctrl in P.
2. remove debugfs_tracing policy
3. remove nvdata, protect_f, protect_s policy
MTK-Commit-Id: d4e5c9893970f0b214b518cba5f9300f130eace9
Change-Id: Iaafc30124fd69ef2b989b9e4e51d71a37d9571e9
CR-Id: ALPS03891225
Feature: Multi-Storage