Revert "Revert "netmgrd: allow netmgrd to acquire wakelock""

This reverts commit d05299c09313e8d606b222198debdae5517f1d4d.

Matching netmgrd for iwlan optimization has been reuploaded.
Bug: 24806096

Change-Id: I29661843c56766a2a40cfbc7f257532ee76aba90
1 file changed