When setting 10 MBit/s HD with DB configuration, device sometimes disables PHY before response on network was sent

Caused by a race between the AP task and the low prio worker. We really should defer the service request to apply the attribute change into the low prio worker. Therefore, replace CipObj_RequestSync() with CipObj_RequestAsync() in EipAp_ObjChangeIndication() in EipAp_Functions.c