idmap2: add systrace logs

Thanks to the ART team for art/libartbase/base/systrace.h which served
as inspiration for the SYSTRACE macro.

Bug: 119761810
Test: run idmap2_tests on device while capturing systrace
Change-Id: I81112ae8e58daf20ebed33ef8b0f5a0caa4dbc73
10 files changed