SLES - Updates (#454)

* SLES - Updates

* Updates

* Cleanup

* Update CHANGELOG.md

Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com>

* CXX Compiler - Use AMD Clang++

* Docs - Updates

* ROCm Version - Upgraded to 6.3.0

* Readme - cleanup

* Readme - minor updates

* Readme - Fix note

---------

Co-authored-by: spolifroni-amd <Sandra.Polifroni@amd.com>

[ROCm/rocdecode commit: 6339767b4c]

projects/rocdecode/docs/install/rocDecode-prerequisites.rst

@@ -16,7 +16,7 @@ ROCm must be installed using the [AMDGPU installer](https://rocm.docs.amd.com/pr
 
 rocDecode can be installed on the following Linux environments:
   
-* Ubuntu 20.04, 22.04
+* Ubuntu 22.04, 24.04
 * RHEL 8 or 9
 * SLES: 15-SP5
 
@@ -28,10 +28,10 @@ The following prerequisites are installed by the package installer. If you are b
   
   If you're installing using the rocDecode source code, the ``rocDecode-setup.py`` script must be run with ``--developer`` set to ``ON``.
 
-* Libva, an implementation for Video Acceleration API (VA-API)
+* Libva-amdgpu-dev, an AMD implementation for Video Acceleration API (VA-API)
 * AMD VA Drivers
-* CMake version 3.5 or later
-* Clang Version 5.0.1 or later
+* CMake version 3.10 or later
+* AMD Clang++ Version 18.0.0 or later
 * pkg-config
 * FFmpeg runtime and headers
 * libstdc++-12-dev for installations on Ubuntu 22.04