Require signing cert history certs to be unique.

Bug: 73943012
Test: android.appsecurity.cts.PkgInstallSignatureVerificationTest
Change-Id: Id7e91c60f1619ef793d73a9dd736debf7ad2ae0c
(cherry picked from commit ef05408bcdcb32d005f91ca295a1e514845a58f4)
2 files changed