Moved Wi-Fi related functions to tel_wifi_utils

Following Wi-Fi related functions are moved from tel_test_utils to
tel_wifi_utils:

- get_wifi_signal_strength
- get_wifi_usage
- wait_for_wifi_data_connection
- check_is_wifi_connected
- ensure_wifi_connected
- forget_all_wifi_networks
- wifi_reset
- set_wifi_to_default
- wifi_toggle_state
- start_wifi_tethering
- stop_wifi_tethering

Bug: None
Test: Yes, locally.
Change-Id: Ic01fae1a5197d68dd56de4ec88add5a4deee96f4
53 files changed
tree: 6e9d86f0b8e86734bfbf971553e37a8a8d15cb21
  1. acts/
  2. acts_tests/
  3. tools/
  4. wts-acts/
  5. Android.mk
  6. OWNERS
  7. PREUPLOAD.cfg