wifi metrics(proto): Add new metrics for wifi native failures

a) Add new metrics for supplicant & hostapd crash numbers. Also, create new
failure metrics for softap turn on.
b) Add metrics for unexpected interface down events.

Bug: 71720421
Bug: 68716726
Test: Unit tests
Change-Id: I9fd6e8bf8f42174a9d6a4ef8249656f804238408