[automerger skipped] simpleperf: add Broadcom STB into whitelist, omit tests requiring hw counters. am: 756a972f99 -s ours am: 7bc92d4e47 -s ours

am skip reason: Change-Id Iddfb34bfa1d66e37398bb162f8e1cfa645d756f4 with SHA-1 756a972f99 is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/extras/+/11735563

Change-Id: I7f51e4876bfecddabbfd4ca338399698f331875c