Rename toggle "Enable Bluetooth LE audio" to "Disable Bluetooth LE audio"

Bug: 275388899
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothLeAudioPreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothLeAudioAllowListPreferenceControllerTest
Change-Id: Ic936eb22aa4f6efd97d3a84b23a44fab83dd09a0
5 files changed