test_od - re-enable f16 test with newer AVD system image

[cre4ture]

fixes issue #5941

how?

• using the system image "google_apis_playstore" instead of "default" results in slightly newer OS version (2019 instead of 2018) that apparently fixed the issue with f16c instruction set

found by chance when investigateting different issue. Sadly the different issue (PR #6080) is not yet fixed by this version.

This brings me to the general question: Why are we using the old API level 28? Is there any specific reason why not switching to a even newer one?

[github-actions]

GNU testsuite comparison:

GNU test failed: tests/timeout/timeout. tests/timeout/timeout is passing on 'main'. Maybe you have to rebase?
Skipping an intermittent issue tests/tail/inotify-dir-recreate (passes in this run but fails in the 'main' branch)

[sylvestre]

Why are we using the old API level 28? Is there any specific reason why not switching to a even newer one?

no good reason I think