Add TEST_MAPPING for trust directories

These TEST_MAPPING files indicate presubmit should run atest on trust
specific tests when files are changed in these directories.

Test: local atest
Bug: 221155933
Change-Id: I4f94bba968a68c9c95da30390a9bf2c8ca063b75
(cherry picked from commit 078f38606df67faae630f41c4a9c67992e5c312c)
3 files changed