Remove protected-broadcast declaration of IKE intents

After Android U, the Iwlan service runs with an non-privileged UID. That
is, protected-broadcast intents cannot be sent to the Iwlan service.
Therefore, remove the protected-broadcast declaration for the following
IKE intents.

- IkeAlarmReceiver.ACTION_DELETE_CHILD
- IkeAlarmReceiver.ACTION_REKEY_CHILD
- IkeAlarmReceiver.ACTION_DELETE_IKE
- IkeAlarmReceiver.ACTION_REKEY_IKE
- IkeAlarmReceiver.ACTION_DPD
- IkeAlarmReceiver.ACTION_KEEPALIVE

Bug: 251078463
Test: on-device regression test
Change-Id: I14ad34f5781e5bdec0260fcef5ee86ba71d3b6c7
1 file changed