RHI > Queries time units are inconsistent with the instruction

[LB-ArturZieba]

Describe the bug
On the https://github.com/o3de/o3de-atom-sampleviewer/wiki/RHI-Samples#queries it is mentioned that: Enable Timestamp queries (if supported): this will show the time in nanoseconds that the whole drawing process takes. It should be smaller when the red quad is occluded.. This is inconsistent with time units shown on the image, or in Atom Sample Viewer ("us" - microseconds, instead of "ns" - nanoseconds):

This issue also occurs on Windows.

Prerequisites

• O3DE engine available.
• AtomSampleViewer project built.

Steps to reproduce

1. Go to Samples > RHI > Queries.
2. Tick the Enable Timestamp queries checkbox.
3. Look at the Draw time units.

Expected behavior
Draw time units are "ns".

Actual behavior
Draw time units are "us".

Found in Branch
O3DE Installer - Stabilization/2305 (26273c22ff71950eb68d137fed25125ebbaa12d6)
AtomSampleViewer - Stabilization/2305 (cee84fa)

Desktop

• Device: PC
• OS: Linux
• Version: Ubuntu 22.04.1 LTS
• CPU AMD Ryzen 5 3600
• GPU NVIDIA GeForce RTX 2060 SUPER
• Memory 16GB