[WifiCoex] Add @hide API for default coex algorithm enabled or not

Add @hide API to return whether the default coex algorithm is enabled or
not for ACTS testing.

Bug: 153651001
Test: build
Change-Id: I4c574c767a8cc2c325139f5f668dd7090efd68b4
2 files changed
tree: 1591e8a18c1a4f290db99d88ad4d8ea742180748
  1. framework/
  2. OsuLogin/
  3. OWNERS