Merge "Move semaphore to osi scope only"

system/osi/Android.bp

system/osi/BUILD.gn

system/osi/include_internal/osi/semaphore.h

system/osi/src/alarm.cc

system/osi/src/fixed_queue.cc

system/osi/src/future.cc

system/osi/src/internal/semaphore.cc

system/osi/src/thread.cc

system/osi/test/alarm_test.cc

system/osi/test/fuzzers/alarm/fuzz_alarm.cc

system/osi/test/internal/semaphore_test.cc

system/test/mock/mock_osi_alarm.h

system/test/mock/mock_osi_fixed_queue.h

system/test/mock/mock_osi_future.h

system/test/mock/mock_osi_semaphore.cc

system/test/mock/mock_osi_semaphore.h

system/test/mock/mock_osi_thread.h

system/test/stub/osi.cc

system/test/suite/adapter/bluetooth_test.cc

system/test/suite/adapter/bluetooth_test.h