Since nrf5 SDK v17.1 (which connectivity supports sd_api_v7.2) has been released a few years ago, if any possibility of upgrading this connectivity host app to the latest sd_api_v7.
Nordic noted that nrf5 SDK has been in maintenance without any further upgrade, it should be considered migrating to ncs(connect SDK).
so far NRF_SD_BLE_API_VERSION > 7 is only founded in softdevice s122 ble_gap.h from SDK v17.1.0, the change is interval/window ble_scan_param_t from unit to us