Build platform side policy with Soong

This replaces the following policy files with Android.bp modules:

  - reqd_policy_mask.cil
  - plat_sepolicy.cil
  - system_ext_sepolicy.cil
  - product_sepolicy.cil
  - plat_pub_policy.cil
  - system_ext_pub_policy.cil
  - pub_policy.cil
  - general_sepolicy.conf (for CTS)

Also microdroid's system policy now uses above.

Bug: 33691272
Bug: 178993690
Test: policy files stay same
Test: boot normal device and microdroid, see sepolicy works
Test: build CtsSecurityHostTestCases
Change-Id: I908a33badee04fbbdadc6780aab52e989923ba57
2 files changed