Disable Wi-Fi during SubscriptionManager tests.

We've seen evidence that IWLAN networks are causing trouble when
validating SubscriptionManager behaviors, so disable Wi-Fi during
this test suite.

Bug: 78181914
Test: atest android.telephony.cts.SubscriptionManagerTest
Change-Id: Ibad47233b5a9388e25648fced6ff2ba97c3c2af3
1 file changed