simpleperf: Fix record_cmd#check_trampoline test

art_jni_trampoline may appear in JIT cache. To load symbols for JIT
cache (stored in the recording file), we need to call
LoadBuildIdAndFileFeatures().

Bug: 317955689
Bug: 299090869
Test: run simpleperf_unit_test
Change-Id: I401b091e27e7b3ae86f003a270b53be4060c922f
1 file changed