Prepare to move VCN: Change license of VCN UT

This CL changes the license of FrameworksVcnTests since it will
be moved out of frameworks/base

It also adds the estination location to the "visibility" field

Bug: 379938062
Flag: EXEMPT; license changes
Test: presubmit
Change-Id: I261f3821632d0a063b7ce60ae62dada339161fb3