Add timeout_dumper to linux_bionic build

timeout_dumper is required to run run-tests in an
environment without gdb. That includes the host-bionic
build.

Test: ./art/test/testrunner/run_build_test_target.py -j72 art-linux-bionic-x64
Bug: 118778408
Change-Id: I5c049470dcde8763ef16f8287f03cd0a5803cb88