Some tests need to add custom tradefed options, but still want to keep most of the soong autogenerated tradefed xml file. Expose a test_options: { tradefed_options: [...] } property that will allow tests to add more options to the autogenerated xml file. Fixes: 184895128 Test: go test, and verified that the ninja files did not change for aosp_arm64 Change-Id: I75f7eb002c8325ce7cdc76e12e76e16195320620