[avce] BRC_EncTool::GetHRDPos
[avce] BRC_EncTool::GetHRDPos

Issue: VSMGWL-31306
Test: manually

Intel-Media-SDK/MediaSDK,Intel-Media-SDK/MediaSDK,Intel-Media-SDK/MediaSDK,Intel-Media-SDK/MediaSDK,Intel-Media-SDK/MediaSDK