Do not disable LE audio offload as the developer option being disabled

The logic wrong to check the a2dp offload disable status to disable LE
audio offload together as the user turn off the developer option. Change
to use the support status, and reset the state to align the support
status.

Bug: 395725497
Fix: 395725497
Flag: EXEMPT, trivial bug fix
Test: Manual turn off developer option to check the status change
Test: atest SettingsRoboTests:com.android.settings.development.BluetoothLeAudioHwOffloadPreferenceControllerTest
Change-Id: I59d3e378495c90f007b46f05b74fdaf19d1520ce