Lumen no longer working in UE5.5 DX11 SM5

[Uno1982]

Also there is now a PR in dev-5.5
Restore DX11 SM5 SWRT Lumen by uno1982 · Pull Request #12860 · EpicGames/UnrealEngine

UE5.5.3 - Fix DX11 Lumen SWRT & Dual RHI Shader packaging.