[DV] Testcases related to USB interrupt and error handling should be added in verification tests

Let's make sure we have defined test cases for all these rules including the ones in memory safety and security; I see verif requirements below, probably these all shld also be added

_Originally posted by @bharatpillilli in https://github.com/chipsalliance/usb2/pull/3#discussion_r3831741110_

Start by reading the verification requirements referenced in the issue and the discussion in PR #3, then locate the repository's verification tests. Identify the USB interrupt, error-handling, memory-safety, and security rules that need coverage. Done means each applicable rule has a defined verification test.

Written by the indexing model from the issue text.