simpleperf: add temporary work around for debug interface change.

To fix a libunwindstack problem, ART appends new debug entries to the
end of the debug entry list, insteading prepending to it. This breaks
CtsSimpleperfTestCases.

This CL adds a temporary work around in simpleperf, so we have time
to try other fixes in ART.

Bug: 143375574
Test: run simpleperf_unit_test
Change-Id: I5d73792996fb89d22a664b982e667ba0a4ee8276
2 files changed