Add SocketUtils CTS tests

Test APIs below:
makeNetlinkSocketAddress(int, int)
makePacketSocketAddress(short, int)
makePacketSocketAddress(int, byte[])
closeSocket(java.io.FileDescriptor)

Bug:129200596
Test: atest FrameworksNetTests
      atest CtsNetTestCases --instant
Merged-In: I36252fdf516cf4a9d4506b615cdb38f5413739e5
(cherry picked from commit 93a53224)

Change-Id: I0963acaf00c5bdd93db0503c426f190f409ca076