Changing the Quality Level does not have any effect in the DepthOfField sample

[LB-TomaszSerwanski]

Describe the bug Modifying the Quality Level setting does not have any effect in the DepthOfField sample.

Please note that the issue occurs both in Windows and Linux.

Please refer to the attached video for more details.

Steps to reproduce Steps to reproduce the behavior:

1. Launch AtomSampleViewerStandalone.exe.
2. Load the DepthOfField sample (Samples -> Features -> DepthOfField).
3. Change the Quality Level to 0 on the Sidebar.
4. Change the Quality Level back to 1 on the Sidebar.

Expected behavior Quality Level changes accordingly to the selected value.

Actual behavior Nothing happens.

Screenshots/Video

https://user-images.githubusercontent.com/86953108/162402658-2ded9ad7-76b7-4be1-afac-318ba65f106a.mp4

Found in Branch ASV: Stabilization/2205(3efc7e3) O3DE: Stabilization/2205:Installer

Desktop/Device:

• Device: PC
• OS: Windows
• Version 10
• CPU AMD Ryzen 5 3600
• GPU Nvidia RTX 2060 SUPER
• Memory 16GB