Fix dumpstate smoke test

run_main exits when finished, which is suitable if we want to run
assertions on bugreport file. Instead call an intermediate function.

Test: adb shell /data/nativetest64/dumpstate_smoke_test/dumpstate_smoke_test
Change-Id: I43708325dcaaf8f0f1ca59f181c216bfb25d28bf
3 files changed