UE4.27 Build Failure with v4.81 #573

System Information
Please provide the following information about your system:

• Steam Audio version: v4.81
• (If applicable) Unity version:
• (If applicable) Unreal Engine version: 4.27.2
• (If applicable) FMOD Studio version: 2.03.06
• Operating System and version: Win10
• (Optional) CPU architecture (e.g. x86-64, armv7): x64 i7 11700k

Issue Description
Compile fails with error below.
SteamAudioDynamicObjectComponent.cpp(24): Error C1083 : Cannot open include file: 'Subsystems/EditorAssetSubsystem.h': No such file or directory

Review of engine source files shows the file Engine/Source/Editor/UnrealEd/Public/Subsystems/EditorAssetSubsystem.h or cpp does not exist in this engine version. I think this subsystem was added with 5.1.

Steps To Reproduce
Steps to reproduce the behavior:

1. Build UE 4.27.2 from source and create blank project
2. Add SteamAudio plugin to project.
3. Generate project files from batch
4. Attempt to build/compile project.

If you are able to provide a minimal project or minimal source code that reproduces the issue, include a link to the project/code here.

Crash Dump
If the issue you are reporting involves a crash, and a crash dump (e.g. .dmp file) is available, provide a link to it here.