Add test dependencies for CtsHostsideNetworkTests

This test need other apks for running the test, but those dependencies
actually defined in suite level of cts but never defined in module level
actually which may lead to test failure due to lack of apks. This CL use
target_required attribute to define the missing test dependencies.

Bug: 227777774
Test: m clean ; atest -c HostsideRestrictBackgroundNetworkTests
Change-Id: I34476d3e261c1d2392405ceeb1459d2f135bbcaf
1 file changed