[Solution]
Factory mode should build in vendor partiton, so move
factory from system partition to vendor partition
MTK-Commit-Id: c55354593a97aed3af9d0b2584037d03d3d2669c
Change-Id: I5a607b60f9ac974380c5e440a6fa0c51797d6b1b
CR-Id: ALPS03932298
Feature: Factory Mode
[Detail]
Move kisd from system to vendor and add keymanage hidl
[Solution]
Modify related sepolicy in device/mediatek/sepolicy/basic
MTK-Commit-Id: c1826ac0bdcc18a4e6d3298e73514801a35a09ad
Change-Id: Iee4b65ba5addc5a21de53e76d3bb092e2f37ab01
CR-Id: ALPS03853366
Feature: [Android Default] SELinux, SEAndroid, and SE-MTK