ClientModeManager: set wifi state

Add call to set current wifi state (client mode) for ClientModeManager
to WifiStateMachine to service API calls requesting the current wifi
state.

Verified added verbose logging:
04-23 13:59:36.901 18053 18194 D WifiStateMachine: setting wifi state to: 2
04-23 13:59:37.340 18053 18194 D WifiStateMachine: setting wifi state to: 3
04-23 13:59:53.874 18053 18194 D WifiStateMachine: setting wifi state to: 0
04-23 13:59:54.943 18053 18194 D WifiStateMachine: setting wifi state to: 1

Bug: 78247892
Test: frameworks/opt/net/wifi/tests/wifitests/runtests.sh
Test: manually checked wifi states in bug report
Test: ran WifiManager CTS tests
Change-Id: Id515c46f805e6d18c0bcb81df4778a556ae6cc19
4 files changed