Log key import, destruction and generation failure for audit.

This is required by NIAP audit logging requirements.
import and destruction events contain key name and uid.

Keystore is added to "log" secondary group to be able to write
to security buffer.

Test: manual, imported and deleted key via Settings while
      monitoring adb shell su - logcat -b security
Bug:70886042
Change-Id: Iebb29380da5251ff66609884e615aabc379cd389
3 files changed