Method is_rock

OpenHD/ohd_common/src/openhd_platform.cpp:305–307

}

bool OHDPlatform::is_rock() const {
  return platform_type >= 20 && platform_type < 30;
}

bool OHDPlatform::is_rpi_or_x86() const {
  return is_rpi() || platform_type == X_PLATFORM_TYPE_X86;