Fix instrumentation stack tracking

We were incorrectly tracking the instrumentation stack, bailing out of
installation early. This could lead to missing instrumentation events,
failing CHECKs or (potentially) corrupt thread stacks.

Test: ./test.py --host --trace --ntrace --stream -j50
Test: Use gapid.

Bug: 67384421
Bug: 74386428

Change-Id: I91686ac4f44550d89b9d7a5f716df88f505d91b1
(cherry picked from commit 74c91c9e90ca502a88240b3d14aed4dd818eedc2)
1 file changed