[CTS] [Tagged Pointers] Fix `user` builds.

User builds aren't allowed to **disable** compat features (they're still
allowed to enable them). When we see a user build, we need to special
case the test as disabling the compat feature is a nop.

Remove some of the nop feature-disabled tests as well, where the
manifest or sdk level isn't enough to trigger tagged pointers anyway.

Bug: 169452143
Test: atest CtsTaggingHostTestCases on {flame-user, flame-userdebug,
blueline-userdebug, aosp_cf_x86_phone-user}

Change-Id: Icde4cebfa51161b803046697b2009b518b61e432
6 files changed