Add CTS coverage for MacAddress

Bug: 71866627
Test: cts-tradefed run cts-dev --module CtsNetTestCases -t android.net.cts.MacAddressTest
Change-Id: I2d8702b154a485f89911e1affb7cee79692f3ac7
1 file changed
tree: 7d9ecbaeb955c079f5f2fd394ba25138846460b5
  1. tests/