wifi: Extend onFailure callback for dual AP case

There are two AP instances when bridged AP is running.
Extend onFailure callback to support if there is a problem one of the instances,
The framework can handle the failure separately. (i.e. No need to
shutdown whole Soft Ap)

Bug: 188921389
Test: Test with test code, the callback works normally.
Change-Id: I0aba5f3c5bf21badd3cf925908c853e9285fa6aa