Link Probing: Enable by default

Enables link probing by default on all devices. Note that link probing will
still be disabled on devices that do not support it (i.e.
R.bool.config_wifi_link_probing_supported == false).

Bug: 112029045
Test: 'adb shell settings delete global wifi_link_probing_enabled',
check 'adb shell dumpsys wifi' for 'link probing feature flag enabled'
Change-Id: If989dbc0dc6d031ea2201b625990dbc23d15301d
1 file changed