Don't wait for IP client to randomize MAC during start

Need to change the sequence so that MAC randomization is done prior to
scanning.

During startup:
ClientModeImpl will enterImpl ConnectableMode first to trigger MAC
randomization set.
Then, ClientModeImpl will enterImpl on DisconnectedState to trigger
scan.

Bug: 279703153
Bug: 278994608
Test: manually verified
Test: atest com.android.server.wifi

Change-Id: I11f3bfcb44d586d437e96b951200be4ec6597299
1 file changed