[ClientModeImpl] Reduce amount of spammy logs

Reduce the amount of spammy logs coming from ClientModeImpl state
machine. Print state log only if state is handled, or if an error or a
debug log is recorded.

Test: Connect to AP and disconnect
Test: Enable / Disable Wi-Fi
Test: atest ClientModeImpl
Bug: 129260139
Change-Id: Ia884da26b477e8ae35e85b1bdc52a7bbd0c72784
1 file changed