Set min_sdk_version to 31 for CtsHostsideNetworkTestsAidl.

This allows CtsHostideNetworkTests to run on S. Setting minsdk
to S is required because if the minsdk is T or above, the AIDL
compiler will generate code that contains Parcel#obtain(IBinder),
which only exists on T+.

Fix: 365129333
Test: atest CtsHostsideNetworkTests passes on redfin running S
Change-Id: Icac58bcc27194129014a0d615b5ca43b8f352ebd
1 file changed