Support of Low Latency mode for WifiLocks

This commit is part of adding the support for low latency mode
wakelocks. It adds the new WifiLock for low latency
This commit also deprecates the FULL, and SCAN_ONLY wifilocks.

Bug: 34905427
Test: No Test- This commit is just the api definition

Change-Id: Id47294867d8000517601dd48a2fcf5a345779ddb
Signed-off-by: Ahmed ElArabawy <arabawy@google.com>