Merge "Added vts tests for certificate subject and serial for various algorithms and self sign or non-self sign certificates." am: f04466c090 am: 46fe94ee88 am: a1b895cd8a

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/1682337

Change-Id: I5113c5149c22c3c43ad5095e6185e8ea8fd1ac5b