Bluetooth: Add a second thread for the scheduler

#include <hidl/LegacySupport.h>

// Add an extra thread for calls to the scheduler service.

static const size_t kMaxThreads = 2;

// Generated HIDL files

using android::hardware::bluetooth::V1_0::IBluetoothHci;

using android::hardware::defaultPassthroughServiceImplementation;

int main() {

  return defaultPassthroughServiceImplementation<IBluetoothHci>();

    return defaultPassthroughServiceImplementation<IBluetoothHci>(kMaxThreads);

}