Update test_set_get_coex_unsafe_channels to match updated APIs

Update wifi coex test to match updated coex APIs from API council
review.

Bug: 184018103
Bug: 183504054
Test: act.py -c <config> -tc WifiManagerTest:test_set_get_coex_unsafe_channels
Change-Id: I05faff717d15a9afb10ecfd0f9582eb32f532229
2 files changed
tree: 0f9229f6d8dfe133f95401dbf2bb2f51e8d75aa4
  1. acts/
  2. acts_tests/
  3. tools/
  4. wts-acts/
  5. Android.mk
  6. OWNERS
  7. PREUPLOAD.cfg