Fix the connecting state for the device suggesting chip.

The changes in the suggested device chip state management:
- The matching between `MediaDevice` and `SuggestedDeviceInfo` is
 performed by route ID instead of `MediaDevice#id` since the latter
 might be not equal to route id in some scenarios.
- If `CONNECTING` or `CONNECTING_FAILED` set as a result of the event,
they are not replaced by the `DISCONNECTED` state.
- A `CONNECTING` state set as a result of the user interaction event
expires in 20 seconds.
- A `CONNECTING_FAILED` state set as a result of a failed request
expires in 10 seconds. Upon expiration, the suggestion is cleared until
the new suggestion is provided.
- `CONNECTING` state is set before scan starts. That shows the spinner
as soon as a user clicks on a button.

Bug: 431423375
Test: atest SuggestedDeviceManagerTest MediaDeviceManagerTest
Test: On a physical device
Flag: com.android.media.flags.enable_suggested_device_api
Change-Id: I716cd921c68c5f4ec9f4667b8aad673c6774a23d