Populate apex module info

Once early boot has ended, monitor the `apexd.status` property and when
it is activated, query apexd for the modules.

Use this to populate the module information in Keystore and send the
hash of the encoding to KeyMint(s).

Bug: 369375199
Test: VtsAidlKeyMintTargetTest
Flag: android.security.keystore2.attest_modules
Change-Id: I1cc84482c67a642bea6a0e031c1fc85084940e46
2 files changed