Add chain status to fail log of testFirewallBlocking

testFirewallBlocking is flaky but failure was not reproducible locally
This CL adds chain status to the fail log to help investigation

Test: atest ConnectivityManagerTest#testFirewallBlocking
Bug: 262141231
Change-Id: Ib7c279fd57e1d61414279606bc6a4211f05d790f
1 file changed