Use absolute paths in tests.

Test: /data/nativetest64/installd_cache_test/installd_cache_test
Test: /data/nativetest64/installd_dexopt_test/installd_dexopt_test
Test: /data/nativetest64/installd_otapreopt_test/installd_otapreopt_test
Test: /data/nativetest64/installd_service_test/installd_service_test
Test: /data/nativetest64/installd_utils_test/installd_utils_test
Bug: 73950947

(cherry picked from commit 8e9bf35a)

Change-Id: I4dd99b270ce02ba78794841b30542a9e37ae7b81