ClientModeImpl: Ignore NETWORK_CONNECTION_EVENT for non-target network

NETWORK_CONNECTION_EVENT may race when the firmware
is roaming at the same time as framework triggering
a new connection.

Thus, ignore NETWORK_CONNECTION_EVENT for the non-
target network.

Bug: 181093373
Test: atest FrameworksWifiTests
Change-Id: Ifa001f245c5e8dbff0863b96456d76472841844f
2 files changed