Add id to SecurityEvent.

Test: runtest --path frameworks/base/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
Test: runtest --path frameworks/base/services/tests/servicestests/src/com/android/server/devicepolicy/SecurityEventTest.java
Bug: 63910201
Change-Id: I053ec9d6c8281d637ace5dc89057e5f7b5ad6554
5 files changed