Expose android.os.Build.VERSION.ACTIVE_CODENAMES to CTS

So that CTS can handle more than one active codename.

Bug: 130764058
Test: atest CtsOsTestCases:android.os.cts.BuildTest#testBuildConstants
Change-Id: I671e28308723ee9e79ded01f12330e4efdbbbe17
2 files changed