Add cts for MacAddress public API

Add test for new public APIs

Test: atest android.net.cts.MacAddressTest
Bug: 139268426
Bug: 135998869
Change-Id: Ib2b73851f621f1648904276ec12ceea02f4b5970
1 file changed
tree: 4df826b59724949176caeeb07810e1b42bfee70b
  1. tests/