val: device_mismatch throughout CTS

[kainino0x]

[kainino0x]

Reopening this issue which was accidentally auto-closed by a commit (hence why it still has status "Open"). @Gyuyoung added some more of these tests recently, so they may be done now, but we still need to review and make sure.

[Gyuyoung]

Let me check if there are more tests that the device_mismatch validation tests need